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*The following article is written from an Out of Universe perspective.*

Companion was a somewhat vague term used to describe the Doctor's closest friends. Such people knew the Doctor's "secret": that they were someone non-human who travelled in time and space in a police box-shaped craft called the TARDIS. The Doctor's companions often directly saved the Doctor's lives or provided the Doctor with a perspective that prevented them from abusing their Time Lord powers. On some occasions, they were the proximate reason that the Doctor sacrificed their then-current life and regenerated. On others, they lost their lives in pursuit of the Doctor's goals.

Companions of the Doctor

This list is presented in chronological order from the Doctor's in-universe point of view. As such companions from projects produced several years after their placement on this list are included in such a way.

Companion	Actor	Tenure	First serial	Last serial
Susan Foreman	Carole Ann Ford	1963-64	An Unearthly Child ^[1]	The Dalek Invasion of Earth^[2]
Barbara Wright	Jacqueline Hill	1963-65	An Unearthly Child	The Chase^[3]
Ian Chesterton	William Russell	1963-65	An Unearthly Child	The Chase
Ian Chesterton	Jamie Glover	2013	Doctor Who: Genesis
Vicki	Maureen O'Brien	1965	The Rescue	The Myth Makers^[4]
Steven Taylor	Peter Purves	1965-66	The Chase	The Savages
Katarina	Adrienne Hill	1965	The Myth Makers	The Daleks' Master Plan
Sara Kingdom	Jean Marsh	1965-66	The Daleks' Master Plan
Sara Kingdom	Suranne Jones	2022	The Daleks' Master Plan
Dodo Chaplet	Jackie Lane	1966	The Massacre of St Bartholomew's Eve	The War Machines^[5]
Polly	Anneke Wills	1966-67	The War Machines	The Faceless Ones
Ben Jackson	Michael Craze	1966-67	The War Machines	The Faceless Ones
Jamie McCrimmon	Frazer Hines	1966-69	The Highlanders	The War Games^[6]
Victoria Waterfield	Deborah Watling	1967-68	The Evil of the Daleks	Fury from the Deep
Zoe Heriot	Wendy Padbury	1968-69	The Wheel in Space	The War Games^[7]
Liz Shaw	Caroline John	1970	Spearhead from Space	Inferno^[8]
Jo Grant	Katy Manning	1971-73	Terror of the Autons	The Green Death^[9]
Sarah Jane Smith	Elisabeth Sladen	1973-76	The Time Warrior	The Hand of Fear^[10]
Harry Sullivan	Ian Marter	1974-75	Robot	Terror of the Zygons^[11]
Leela	Louise Jameson	1977-78	The Face of Evil	The Invasion of Time^[12]
Leela	Louise Jameson	2004-06	Lord President of Gallifrey	Doctor Who: Revelation^[13]
K-9	John Leeson	1977-81	The Invisible Enemy	Warriors' Gate^[14]
	David Brierley	1977-81	The Invisible Enemy	Warriors' Gate^[14]
	John Leeson	2004-06	Lord President of Gallifrey	Doctor Who: Revelation^[15]
Romana	Mary Tamm	1978-81	The Ribos Operation	Warriors' Gate^[16]
	Lalla Ward	1978-81	The Ribos Operation	Warriors' Gate^[16]
	Mary Tamm	2003	The Sands of Time^[17]
Adric	Matthew Waterhouse	1980-82	Full Circle	Earthshock^[18]
Nyssa	Sarah Sutton	1981-83	The Keeper of Traken	Terminus^[19]
Nyssa	Sarah Sutton	2003	Creatures of Beauty^[20]
Tegan Jovanka	Janet Fielding	1981-84	Logopolis	Resurrection of the Daleks^[21]
Tegan Jovanka	Janet Fielding	2009	Delayed Indefinitely	Brave New Town
Vislor Turlough	Mark Strickson	1983-84	Mawdryn Undead	Planet of Fire^[22]
Peri Brown	Nicola Bryant	1984-86	Planet of Fire	The Trial of a Time Lord^[23]
Mel Bush	Bonnie Langford	1986-87	The Trial of a Time Lord	Dragonfire^[24]
Mel Bush	Bonnie Langford	2003	The Horrors of War^[25]
Ace	Sophie Aldred	1987-90	Dragonfire	Ice Time^[26]
		2003	LIVE 34^[27]
		2005-06	Everlasting War	Demons of the Past^[28]
Katie Tollinger	Julia Sawalha	1990-92	Crime of the Century	Transit^[29]
Benjamin Henrick	John Banks	1990-94	Night Thoughts^[30]	The Prisoner of Time^[31]
Bernice Summerfield	Lisa Bowerman	1992-95	Love and War	Hatred of the Daleks^[32]
Bernice Summerfield	Lisa Bowerman	2003	The Societal Step^[33]
Janet Wells	Rakie Ayola	1996-98	Revenge of the Master	The Web of Time^[34]
Janet Wells	Rakie Ayola	2003	Spare Parts^[35]
Sammy Thompson	Laurie Holden	1998-2001	The Hail Mary	Night of the Angels^[36]
Lou Madison	Gillian Kearney	2000-01	The Puppet Master	The Time of the Daleks
Sandra Armstrong	Anna Hope	2002-03	No Sky in Space	Doctor Who^[37]
Emma Lewis	Devika Parikh	2020-21	TNR: The Reckoning	TNR: The Godful Universe
Dustin Barnett	Teddy Lane Jr.	2020-21	TNR: The Reckoning	TNR: The Godful Universe
Helena Valentine	Sigourney Weaver	2021	TNR: The Godless Universe^[38]	TNR: Vex^[39]
Gali Lewis	Audra McDonald	2023-	TNR: To Be Announced^[40]
Amanda Theodore	T'Nia Miller	2023-	TNR: To Be Announced^[41]
Angela Jensen	Jacqueline Pearce	2007-08	The Silurian Awakening	Burning Books^[42]
Lizzie Clarke	Sophie Okonedo	2007-09	The Scream	Mad World^[43]
Rosalyn Clyne	Felicity Jones	2018-21	Doctor Who: Until the World Ends	Doctor Who: The Upgrade from Tomorrow
Zenla	Juliet Landau	2010-12	Doctor Who: Vengeance	Doctor Who: Endgame^[44]
Chris Parsons	Dougray Scott	2010-12	Doctor Who: Vengeance	Doctor Who: Endgame
Susan Flemyng	Julie Walters	2010	Hark! The Weeping Angels Sing^[45]
Gemma Legato	Emer Kenny	2011	Broken Shackles	Evil of the Gaians^[46]
Erin Stevenson	Montserrat Lombard	2014-15	God Save the Queen	The Slave Master^[47]
Erin Stevenson	Montserrat Lombard	2020-23	ADV: The Dalek Invasion of Sussex	ADV: Exterminate!
Hogan Cox	Bernard Cribbins	2014-15	Those Who Lead	Destiny of the Gaians
Kyle Harrison	William Moseley	2015	Queen of the Daleks^[48]	The Slave Master^[49]
Kyle Harrison	William Moseley	2020-23	ADV: The Dalek Invasion of Sussex	ADV: Exterminate!
Raleigh Baker-Mitchell	Sarah Winter	2015-16	The Trial of the Damned^[50]	The Last Winter^[51]
Pete Fletcher	Daniel Adegboyega	2016-18	The Greenhouse Effect	The New Empire
Pete Fletcher	Daniel Adegboyega	2022	The Restoration
Sally Brennen	Shelley King	2017	The Demons of Madison Road	False Prophets
		2018	Friends on a Train	The New Empire
		2022	The Restoration
Daniel Bevin	Pierce Brosnan	2017-18	The Martian Equinox
Annie Downes	Jane Wymark	2018	Friends on a Train^[52]	The New Empire
Bertie Reynolds	Alex Jennings	2019	The Doomsday Cannon	Her Final Stand
Bertie Reynolds	Alex Jennings	2020-21	No Good Deed	Journey into the Unknown
Chrissie Finch	Jayd Johnson	2020-21	The Screams of Terror	Journey into the Unknown
Viv Kalanak	Jaye Griffiths	2023	The Other World^[53]

Companions of Doctors from the Toymaker's Realm

Companion	Actor	Tenure	First Serial	Last Serial
Dalek Movies
Ian Chesterton	Roy Castle	1965	Dr. Who and the Daleks
Barbara Who	Jennie Linden	1965	Dr. Who and the Daleks
Susan Who	Roberta Tovey	1965-66	Dr. Who and the Daleks	Daleks' Invasion Earth 2150 A.D.
Tom Campbell	Bernard Cribbins	1966	Daleks' Invasion Earth 2150 A.D.
Louise	Jill Curzon	1966	Daleks' Invasion Earth 2150 A.D.
Dokter Wie
Evert de Vries	Koert-Jan de Bruikn	2018-22	Het Vreemde Meisje	Eindspel
Berendjen Visser	Tamara Brinkman
Stijntje Meyer	Jade Olieberg
Doctor Misterio
Sarita Delgado	Esther Acebo	2019	Los Demonios De La Escuela	Invasión De La Tierra
Pedro Fernández	Roberto Enriquez	2019	Los Demonios De La Escuela	Invasión De La Tierra
Doctor Who: Through Time and Space
Pola Pisarek	Paulina Walendziak	2019-	The Zygons	TBA
Benek Jackiewicz	Jan Hrynkiewicz	2019-21	The Third Dimension	The Last Wonder
Emma Legato	Kamila Bujalska	2022-	The Liberation	TBA
Mysteriet Doktorn
Frans Setterberg	Hans Mosesson	2019-	Den Levande Plasten	TBA
Erik Långström	Peter Haver	2019-	Den Levande Plasten	TBA

Footnotes

↑ Susan travelled with the Doctor prior to the events of An Unearthly Child.
↑ Susan Foreman later appears, as a guest character, in The Five Doctors, An Earthly Child, Doctor Who and played by Claudia Grant in Doctor Who: Genesis. Carole Ann Ford went onto voice Susan, in a guest appearance, in the Doctor Who: Adventures episode, The First Adventure.
↑ Barbara Wright later appears, as a guest character, in Doctor Who: Genesis, played by Jemma Powell.
↑ Vicki later appears, as a guest character, in Broken Shackles.
↑ Dodo Chaplet later appears, as a guest character, in Who Killed Kennedy? played by Nana Visitor.
↑ Jamie McCrimmon later appears, as a guest character, in The Five Doctors and The Two Doctors.
↑ Zoe Heriot later appears, as a guest character, in The Five Doctors.
↑ Liz Shaw later appears, as a guest character, in The Five Doctors, Night of the Angels, The Dance of the Devil, Doctor Who, Return to Earth and Mad World. She also went onto appear as a main character in, spinoff series, Leftover.
↑ Jo Grant (subsequently known as Jo Jones) later appears, as a guest character, in Night of the Angels, The Dance of the Devil, Doctor Who, Return to Earth and Mad World. She also went onto appear as a main character in, spinoff series, Leftover.
↑ Sarah Jane Smith later appears, as a guest character, in The Five Doctors, The Lords of Time, Night of the Angels, The Dance of the Devil, Doctor Who, Return to Earth and Mad World. She also went onto appear as the main character in, spinoff series, K-9 & Company, and as main character in, spinoff series, Leftover.
↑ Harry Sullivan later appears, as a guest character, in The Android Invasion.
↑ Leela later appears, as a guest character, in Lungbarrow, The Lords of Time and The Other.
↑ Leela later appears, as a guest character, in Inquisition, Doctor Who: Vengeance and Checkmate. She also went onto appear as a guest star in, spinoff series Rebel Zero, and a main character in, spinoff series, Panopticon, from Period of Adjustment to Only Teardrops, with a guest appearance in The Values of Freedom. She also appeared, as a guest character, in Ascension from, spinoff series, Cold Front.
↑ K-9 later appears, as a guest character, in The Five Doctors, Lungbarrow, The Sands of Time, The Other and Doctor Who. He also appears as a main character in, self-titled, spinoff series, K-9 and Company.
↑ K-9 later appears, as a guest character, in Inquisition and Doctor Who: Vengeance. He also went onto as a main character in, spinoff series, Panopticon, from Period of Adjustment to Maybe It's Imaginary.
↑ Romana later appears, as a guest character, in The Five Doctors, Lungbarrow, The Reverent Peril and The Lords of Time.
↑ Romana later appears, as a guest character, in Doctor Who.
↑ Adric later appears, as a cameo, in Time-Flight and The Caves of Androzani.
↑ Nyssa later appears, as a cameo, in The Caves of Androzani.
↑ Nyssa later appears, as a guest character, in Doctor Who.
↑ Tegan Jovanka later appears, as a cameo, in The Caves of Androzani, and, as a guest character, in The Lords of Time.
↑ Vislor Turlough later appears, as a cameo, in The Caves of Androzani.
↑ Peri Brown later appears, as a guest character, in The Lords of Time.
↑ Mel Bush's voice is heard during the Seventh Doctor's regeneration scene in Blood and Iron.
↑ Mel Bush later appears, as a guest character, in Doctor Who.
↑ Ace's voice is heard during the Seventh Doctor's regeneration scene in Blood and Iron and she later appears, as a guest character, in The Lords of Time.
↑ Ace later appears, as a guest character, in Doctor Who.
↑ Ace later appears, as a cameo, in Doctor Who: Revelation. She also appeared, as a main character, in, spinoff series, Rebel Zero.
↑ Katie Tollinger later appears, as a guest character, in Ashes to Ashes, Dust to Dust, Night of the Angels, The Dance of the Devil, Doctor Who, Return to Earth and Mad World. She also went onto appear as a main character in, spinoff series, Leftover.
↑ Although Henrick only became a companion beginning with Season 28, John Banks had made multiple appearances as versions of the character in Season 27, and had fulfilled a companion role in Blood and Iron.
↑ Benjamin Henrick later appears, as a guest character, in End of Days from, the spinoff series, Leftover.
↑ Bernice Summerfield later appears, as guest character, in The Reckoning of Shadows.
↑ Bernice Summerfield later appears, as a guest character, in Doctor Who.
↑ Janet Wells later appears, as a cameo, in The Chimes of Midnight.
↑ Janet Wells later appears, as a guest character, in Doctor Who.
↑ Sammy Thompson later appears, as a guest character, in Mad World. She also went onto appear as a main character in, spinoff series, Leftover, from Voyage to the New World, after having previously appeared, as a cameo, in The Doctored Papers.
↑ Sandra Armstrong went onto appear, as a guest character, in The Confrontation of the Wicked. She also appeared, as a cameo, in Occupation from, spinoff series, Cold Front.
↑ Helena Valentine, in her true identity as The Hal, previously throughout, spinoff series, Panopticon, making recurring appearances from The Hal onward. She also appeared in the Cold Front episodes, Aftermath and Ascension.
↑ Despite appearing in episodes, as a main character, following Vex, Helena Valentine ceases to be a companion after her true identity is revealed.
↑ Gali Lewis first appeared in Refuge in 2020.
↑ Amanda Theodore first appeared in Those Who Lead in 2014.
↑ Angela Jensen went onto appear, as a guest character, in Cold Star, Cannon Fodder, Mad World and Doctor Who: Until the World Ends. She also appeared, as a guest character, in the Leftover serial, End of Days, and as a guest character, in Rivals from, spinoff series, Cold Front.
↑ Lizzie Clarke later appears, as a guest character, in The Godful Universe, from, the spinoff series, Doctor Who: The New Renegade.
↑ Zenla later appeared, as a guest character, in Remnants (played by Honor Blackman, before appearing, as a guest character, in Remembrance of the Gaians and The Third Planet (played by Juliet Landau. She was also main character in, spinoff series, Panopticon, from The Condemned.
↑ Susan Flemyng first appeared as a companion in Toymaker-realm movie, Dr. Who and the Daleks (see below), before becoming a main-universe companion. She later appeared in Daleks vs Mechons from, spinoff series, Cold Front.
↑ Gemma Legato later appeared, as a guest character, in Destiny of the Gaians and The Third Planet, as well as Consequences from, the spinoff series, Cold Front.
↑ Erin Stevenson later appears, as a guest character, in The Third Planet.
↑ Kyle previously appeared in God Save the Queen and Flatline before becoming a full-time companion.
↑ Kyle Harrison later appears, as a guest character, in The Third Planet.
↑ While first appearing in The Trial of the Damned, Sarah Winter isn't credited as a companion until The Dimensions of Space and Time.
↑ Raleigh Baker-Mitchell later appears, as a guest character, in Angels of Time, False Prophets and The Daleks' Master Plan. She also went onto appear, as a main character, in, spinoff series, The Elysium, from The Foreseers.
↑ Annie previously appeared in The Demons of Madison Road, The Haunting and The Sinister Minister before becoming a companion.
↑ Viv previously appeared in Her Final Stand and Homeland before becoming a companion.

[1] Susan travelled with the Doctor prior to the events of An Unearthly Child.

[2] Susan Foreman later appears, as a guest character, in The Five Doctors, An Earthly Child, Doctor Who and played by Claudia Grant in Doctor Who: Genesis. Carole Ann Ford went onto voice Susan, in a guest appearance, in the Doctor Who: Adventures episode, The First Adventure.

[3] Barbara Wright later appears, as a guest character, in Doctor Who: Genesis, played by Jemma Powell.

[4] Vicki later appears, as a guest character, in Broken Shackles.

[5] Dodo Chaplet later appears, as a guest character, in Who Killed Kennedy? played by Nana Visitor.

[6] Jamie McCrimmon later appears, as a guest character, in The Five Doctors and The Two Doctors.

[7] Zoe Heriot later appears, as a guest character, in The Five Doctors.

[8] Liz Shaw later appears, as a guest character, in The Five Doctors, Night of the Angels, The Dance of the Devil, Doctor Who, Return to Earth and Mad World. She also went onto appear as a main character in, spinoff series, Leftover.

[9] Jo Grant (subsequently known as Jo Jones) later appears, as a guest character, in Night of the Angels, The Dance of the Devil, Doctor Who, Return to Earth and Mad World. She also went onto appear as a main character in, spinoff series, Leftover.

[10] Sarah Jane Smith later appears, as a guest character, in The Five Doctors, The Lords of Time, Night of the Angels, The Dance of the Devil, Doctor Who, Return to Earth and Mad World. She also went onto appear as the main character in, spinoff series, K-9 & Company, and as main character in, spinoff series, Leftover.

[11] Harry Sullivan later appears, as a guest character, in The Android Invasion.

[12] Leela later appears, as a guest character, in Lungbarrow, The Lords of Time and The Other.

[13] Leela later appears, as a guest character, in Inquisition, Doctor Who: Vengeance and Checkmate. She also went onto appear as a guest star in, spinoff series Rebel Zero, and a main character in, spinoff series, Panopticon, from Period of Adjustment to Only Teardrops, with a guest appearance in The Values of Freedom. She also appeared, as a guest character, in Ascension from, spinoff series, Cold Front.

[14] K-9 later appears, as a guest character, in The Five Doctors, Lungbarrow, The Sands of Time, The Other and Doctor Who. He also appears as a main character in, self-titled, spinoff series, K-9 and Company.

[15] K-9 later appears, as a guest character, in Inquisition and Doctor Who: Vengeance. He also went onto as a main character in, spinoff series, Panopticon, from Period of Adjustment to Maybe It's Imaginary.

[16] Romana later appears, as a guest character, in The Five Doctors, Lungbarrow, The Reverent Peril and The Lords of Time.

[17] Romana later appears, as a guest character, in Doctor Who.

[18] Adric later appears, as a cameo, in Time-Flight and The Caves of Androzani.

[19] Nyssa later appears, as a cameo, in The Caves of Androzani.

[20] Nyssa later appears, as a guest character, in Doctor Who.

[21] Tegan Jovanka later appears, as a cameo, in The Caves of Androzani, and, as a guest character, in The Lords of Time.

[22] Vislor Turlough later appears, as a cameo, in The Caves of Androzani.

[23] Peri Brown later appears, as a guest character, in The Lords of Time.

[24] Mel Bush's voice is heard during the Seventh Doctor's regeneration scene in Blood and Iron.

[25] Mel Bush later appears, as a guest character, in Doctor Who.

[26] Ace's voice is heard during the Seventh Doctor's regeneration scene in Blood and Iron and she later appears, as a guest character, in The Lords of Time.

[27] Ace later appears, as a guest character, in Doctor Who.

[28] Ace later appears, as a cameo, in Doctor Who: Revelation. She also appeared, as a main character, in, spinoff series, Rebel Zero.

[29] Katie Tollinger later appears, as a guest character, in Ashes to Ashes, Dust to Dust, Night of the Angels, The Dance of the Devil, Doctor Who, Return to Earth and Mad World. She also went onto appear as a main character in, spinoff series, Leftover.

[30] Although Henrick only became a companion beginning with Season 28, John Banks had made multiple appearances as versions of the character in Season 27, and had fulfilled a companion role in Blood and Iron.

[31] Benjamin Henrick later appears, as a guest character, in End of Days from, the spinoff series, Leftover.

[32] Bernice Summerfield later appears, as guest character, in The Reckoning of Shadows.

[33] Bernice Summerfield later appears, as a guest character, in Doctor Who.

[34] Janet Wells later appears, as a cameo, in The Chimes of Midnight.

[35] Janet Wells later appears, as a guest character, in Doctor Who.

[36] Sammy Thompson later appears, as a guest character, in Mad World. She also went onto appear as a main character in, spinoff series, Leftover, from Voyage to the New World, after having previously appeared, as a cameo, in The Doctored Papers.

[37] Sandra Armstrong went onto appear, as a guest character, in The Confrontation of the Wicked. She also appeared, as a cameo, in Occupation from, spinoff series, Cold Front.

[38] Helena Valentine, in her true identity as The Hal, previously throughout, spinoff series, Panopticon, making recurring appearances from The Hal onward. She also appeared in the Cold Front episodes, Aftermath and Ascension.

[39] Despite appearing in episodes, as a main character, following Vex, Helena Valentine ceases to be a companion after her true identity is revealed.

[40] Gali Lewis first appeared in Refuge in 2020.

[41] Amanda Theodore first appeared in Those Who Lead in 2014.

[42] Angela Jensen went onto appear, as a guest character, in Cold Star, Cannon Fodder, Mad World and Doctor Who: Until the World Ends. She also appeared, as a guest character, in the Leftover serial, End of Days, and as a guest character, in Rivals from, spinoff series, Cold Front.

[43] Lizzie Clarke later appears, as a guest character, in The Godful Universe, from, the spinoff series, Doctor Who: The New Renegade.

[44] Zenla later appeared, as a guest character, in Remnants (played by Honor Blackman, before appearing, as a guest character, in Remembrance of the Gaians and The Third Planet (played by Juliet Landau. She was also main character in, spinoff series, Panopticon, from The Condemned.

[45] Susan Flemyng first appeared as a companion in Toymaker-realm movie, Dr. Who and the Daleks (see below), before becoming a main-universe companion. She later appeared in Daleks vs Mechons from, spinoff series, Cold Front.

[46] Gemma Legato later appeared, as a guest character, in Destiny of the Gaians and The Third Planet, as well as Consequences from, the spinoff series, Cold Front.

[47] Erin Stevenson later appears, as a guest character, in The Third Planet.

[48] Kyle previously appeared in God Save the Queen and Flatline before becoming a full-time companion.

[49] Kyle Harrison later appears, as a guest character, in The Third Planet.

[50] While first appearing in The Trial of the Damned, Sarah Winter isn't credited as a companion until The Dimensions of Space and Time.

[51] Raleigh Baker-Mitchell later appears, as a guest character, in Angels of Time, False Prophets and The Daleks' Master Plan. She also went onto appear, as a main character, in, spinoff series, The Elysium, from The Foreseers.

[52] Annie previously appeared in The Demons of Madison Road, The Haunting and The Sinister Minister before becoming a companion.

[53] Viv previously appeared in Her Final Stand and Homeland before becoming a companion.

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@@ Line 9: / Line 9: @@
 ! scope="col" style="width:10%;" | Tenure
 ! scope="col" style="width:20%;" | First serial
-! colspan="2" scope="col" style="width:20%;" | Last serial
+! scope="col" style="width:20%;" | Last serial
 |-
 | scope="row" |[[Susan Foreman|'''Susan Foreman''']]
@@ Line 15: / Line 15: @@
 | 1963-64
 | align="center" |''[[An Unearthly Child (serial)|An Unearthly Child]] ''<ref>Susan travelled with the Doctor prior to the events of ''An Unearthly Child''.</ref>
+| align="center" |''[[The Dalek Invasion of Earth (serial)|The Dalek Invasion of Earth]]''<ref>Susan Foreman later appears, as a guest character, in [[The Five Doctors (episode)|''The Five Doctors'']], [[An Earthly Child (serial)|''An Earthly Child'']], [[Doctor Who (2003)|''Doctor Who'']] and played by [[Claudia Grant]] in [[Doctor Who: Genesis|''Doctor Who: Genesis'']]. Carole Ann Ford went onto voice Susan, in a guest appearance, in the ''[[Doctor Who: Adventures (TV Series)|Doctor Who: Adventures]]'' episode, [[The First Adventure (episode)|''The First Adventure'']].</ref>
-| colspan="2" align="center" |''[[The Dalek Invasion of Earth (serial)|The Dalek Invasion of Earth]]''
 |-
 | scope="row" |[[Barbara Wright|'''Barbara Wright''']]
 |[[Jacqueline Hill]]
 | 1963-65
-| align="center" |''An Unearthly Child''
+| rowspan="2" align="center" |''An Unearthly Child''
-| colspan="2" align="center" |''[[The Chase (serial)|The Chase]]''
+| align="center" |''[[The Chase (serial)|The Chase]]''<ref>Barbara Wright later appears, as a guest character, in [[Doctor Who: Genesis|''Doctor Who: Genesis'']], played by [[Jemma Powell]].</ref>
 |-
 | rowspan="2" scope="row" |[[Ian Chesterton|'''Ian Chesterton''']]
-| rowspan="2" |[[William Russell]]
+|[[William Russell]]
 |1963-65
+| align="center" |''The Chase''
-|''An Unearthly Child''
-| colspan="2" |''The Chase''
 |-
+|[[Jamie Glover]]
 |2013
-| colspan="3" |[[Doctor Who: Genesis|''Doctor Who: Genesis'']]<ref>Ian and Barbara are both played by new actors, [[Jamie Glover]] and [[Jemma Powell]], respectively.</ref>
+| align="center" colspan="2" |[[Doctor Who: Genesis|''Doctor Who: Genesis'']]
 |-
 | scope="row" |'''[[Vicki]]'''
@@ Line 36: / Line 36: @@
 | 1965
 | align="center" |[[The Rescue (serial)|''The Rescue'']]
-| colspan="2" align="center" |[[The Myth Makers (serial)|''The Myth Makers'']]
+| align="center" |[[The Myth Makers (serial)|''The Myth Makers'']]<ref>Vicki later appears, as a guest character, in [[Broken Shackles (episode)|''Broken Shackles'']].</ref>
 |-
 | scope="row" |[[Steven Taylor|'''Steven Taylor''']]
 |[[Peter Purves]]
-| rowspan="2" | 1965-66
+| 1965-66
 | align="center" |''The Chase''
-| colspan="2" align="center" |''[[The Savages (serial)|The Savages]]''
+| align="center" |''[[The Savages (serial)|The Savages]]''
 |-
 | scope="row" |'''[[Katarina]]'''
 |[[Adrienne Hill]]
+|1965
 | align="center" |''The Myth Makers''
-| colspan="2" align="center" |''[[The Daleks' Master Plan (serial)|The Daleks' Master Plan]]''
+| align="center" |''[[The Daleks' Master Plan (serial)|The Daleks' Master Plan]]''
 |-
 | rowspan="2" scope="row" |[[Sara Kingdom|'''Sara Kingdom''']]
 |[[Jean Marsh]]
+|1965-66
-| rowspan="2" | 1966
+| colspan="2" align="center" |''The Daleks' Master Plan''
-| colspan="3" align="center" |''The Daleks' Master Plan''
 |-
 |[[Suranne Jones]]
+|2022
-| colspan="3" align="center" |[[The Daleks' Master Plan (2022 serial)|''The Daleks' Master Plan'']]
+| colspan="2" align="center" |[[The Daleks' Master Plan (2022 serial)|''The Daleks' Master Plan'']]
 |-
 | scope="row" |[[Dodo Chaplet|'''Dodo Chaplet''']]
@@ Line 62: / Line 63: @@
 |1966
 | align="center" |''[[The Massacre of St Bartholomew's Eve (serial)|The Massacre of St Bartholomew's Eve]]''
-| colspan="2" align="center" |''[[The War Machines (serial)|The War Machines]]''
+| align="center" |''[[The War Machines (serial)|The War Machines]]''<ref>Dodo Chaplet later appears, as a guest character, in [[Who Killed Kennedy? (episode)|''Who Killed Kennedy?'']] played by Nana Visitor.</ref>
 |-
 | scope="row" |'''[[Polly]]'''
@@ Line 68: / Line 69: @@
 | rowspan="2" | 1966-67
 | rowspan="2" align="center" |''The War Machines''
-| colspan="2" rowspan="2" align="center" |''[[The Faceless Ones (serial)|The Faceless Ones]]''
+| rowspan="2" align="center" |''[[The Faceless Ones (serial)|The Faceless Ones]]''
 |-
 | scope="row" |[[Ben Jackson|'''Ben Jackson''']]
@@ Line 77: / Line 78: @@
 | 1966-69
 | align="center" |''[[The Highlanders]]''
-| colspan="2" align="center" |[[The War Games (serial)|''The War Games'']]
+| align="center" |[[The War Games (serial)|''The War Games'']]<ref>Jamie McCrimmon later appears, as a guest character, in [[The Five Doctors (episode)|''The Five Doctors'']] and [[The Two Doctors (serial)|''The Two Doctors'']].</ref>
 |-
 | scope="row" |[[Victoria Waterfield|'''Victoria Waterfield''']]
@@ Line 83: / Line 84: @@
 | 1967-68
 | align="center" |''[[The Evil of the Daleks (serial)|The Evil of the Daleks]]''
-| colspan="2" align="center" |[[Fury from the Deep (serial)|''Fury from the Deep'']]
+| align="center" |[[Fury from the Deep (serial)|''Fury from the Deep'']]
 |-
 | scope="row" |'''[[Zoe Heriot]]'''
@@ Line 89: / Line 90: @@
 | 1968-69
 | align="center" |''[[The Wheel in Space (serial)|The Wheel in Space]]''
-| colspan="2" align="center" |''[[The War Games (serial)|The War Games]]''
+| align="center" |''[[The War Games (serial)|The War Games]]''<ref>Zoe Heriot later appears, as a guest character, in [[The Five Doctors (episode)|''The Five Doctors'']].</ref>
 |-
 | scope="row" |'''[[Liz Shaw]]'''
@@ Line 95: / Line 96: @@
 | 1970
 | align="center" |''[[Spearhead from Space (serial)|Spearhead from Space]]''
+| align="center" |[[Inferno (serial)|''Inferno'']]<ref>Liz Shaw later appears, as a guest character, in [[The Five Doctors|''The Five Doctors'']], ''[[Night of the Angels (serial)|Night of the Angels]], [[The Dance of the Devil (episode)|The Dance of the Devil]], [[Doctor Who (2003)|Doctor Who]], [[Return to Earth (episode)|Return to Earth]]'' and ''[[Mad World]].'' She also went onto appear as a main character in, spinoff series, [[Leftover (TV Series)|''Leftover'']].</ref>
-| colspan="2" align="center" |[[Inferno (serial)|''Inferno'']]
 |-
 | scope="row" |'''[[Jo Grant]]'''
@@ Line 101: / Line 102: @@
 | 1971-73
 | align="center" |''[[Terror of the Autons (serial)|Terror of the Autons]]''
+| align="center" |''[[The Green Death (serial)|The Green Death]]''<ref>Jo Grant (subsequently known as Jo Jones) later appears, as a guest character, in ''[[Night of the Angels (serial)|Night of the Angels]], [[The Dance of the Devil (episode)|The Dance of the Devil]],'' ''[[Doctor Who (2003)|Doctor Who]], [[Return to Earth (episode)|Return to Earth]]'' and ''[[Mad World]].'' She also went onto appear as a main character in, spinoff series, [[Leftover (TV Series)|''Leftover'']].</ref>
-| colspan="2" align="center" |''[[The Green Death (serial)|The Green Death]]''
 |-
 | scope="row" |'''[[Sarah Jane Smith]]'''
@@ Line 107: / Line 108: @@
 | 1973-76
 | align="center" |''[[The Time Warrior (serial)|The Time Warrior]]''
+| align="center" |[[The Hand of Fear (serial)|''The Hand of Fear'']]<ref>Sarah Jane Smith later appears, as a guest character, in [[The Five Doctors|''The Five Doctors'']], [[The Lords of Time (episode)|''The Lords of Time'']], ''[[Night of the Angels (serial)|Night of the Angels]], [[The Dance of the Devil (episode)|The Dance of the Devil]],'' ''[[Doctor Who (2003)|Doctor Who]], [[Return to Earth (episode)|Return to Earth]]'' and ''[[Mad World]].'' She also went onto appear as the main character in, spinoff series, [[K-9 & Company (TV Series)|''K-9 & Company'']], and as main character in, spinoff series, [[Leftover (TV Series)|''Leftover'']].</ref>
-| colspan="2" align="center" |[[The Hand of Fear (serial)|''The Hand of Fear'']]
 |-
 | scope="row" |'''[[Harry Sullivan]]'''
@@ Line 113: / Line 114: @@
 | 1974-75
 | align="center" |''[[Robot (serial)|Robot]]''
-| colspan="2" align="center" |''[[Terror of the Zygons (serial)|Terror of the Zygons]]''
+| align="center" |''[[Terror of the Zygons (serial)|Terror of the Zygons]]''<ref>Harry Sullivan later appears, as a guest character, in [[The Android Invasion|''The Android Invasion'']].</ref>
 |-
-| scope="row" |'''[[Leela]]'''
+| rowspan="2" scope="row" |'''[[Leela]]'''
-|[[Louise Jameson]]
+| rowspan="2" |[[Louise Jameson]]
-| 1977-78,
+| 1977-78
--06
 | align="center" |''[[The Face of Evil (serial)|The Face of Evil]]''
-| colspan="2" align="center" |''[[The Invasion of Time (serial)|The Invasion of Time]]''
+| align="center" |''[[The Invasion of Time (serial)|The Invasion of Time]]''<ref>Leela later appears, as a guest character, in [[Lungbarrow (serial)|''Lungbarrow'']], [[The Lords of Time (episode)|''The Lords of Time'']] and [[The Other (episode)|''The Other'']].</ref>
 |-
+|2004-06
-| rowspan="2" scope="row" |'''[[K-9]]'''
+| align="center" |''[[Lord President of Gallifrey (episode)|Lord President of Gallifrey]]''
+| align="center" |''[[Doctor Who: Revelation]]''<ref>Leela later appears, as a guest character, in [[Inquisition|''Inquisition'']], [[Doctor Who: Vengeance|''Doctor Who: Vengeance'']] and [[Checkmate|''Checkmate'']]. She also went onto appear as a guest star in, spinoff series [[Rebel Zero (Mini-Series)|''Rebel Zero'']], and a main character in, spinoff series, [[Panopticon (TV Series)|''Panopticon'']], from [[Period of Adjustment|''Period of Adjustment'']] to [[Only Teardrops|''Only Teardrops'']], with a guest appearance in [[The Values of Freedom|''The Values of Freedom'']]. She also appeared, as a guest character, in [[Ascension|''Ascension'']] from, spinoff series, [[Cold Front (TV Series)|''Cold Front'']].</ref>
+|-
+| rowspan="3" scope="row" |'''[[K-9]]'''
 |[[John Leeson]]
-| rowspan="2" | 1977-81,
+| rowspan="2" | 1977-81
--06
 | rowspan="2" align="center" |''[[The Invisible Enemy (serial)|The Invisible Enemy]]''
+| rowspan="2" align="center" |''[[Warriors' Gate (serial)|Warriors' Gate]]''<ref>K-9 later appears, as a guest character, in [[The Five Doctors (episode)|''The Five Doctors'']], [[Lungbarrow (serial)|''Lungbarrow'']], [[The Sands of Time (serial)|''The Sands of Time'']], [[The Other (episode)|''The Other'']] and [[Doctor Who (2003)|''Doctor Who'']]. He also appears as a main character in, self-titled, spinoff series, ''[[K-9 and Company (TV Series)|K-9 and Company]].''</ref>
-| colspan="2" rowspan="2" align="center" |''[[Warriors' Gate (serial)|Warriors' Gate]]''
 |-
 |[[David Brierley]]
 |-
+|[[John Leeson]]
-| rowspan="2" scope="row" |'''[[Romana]]'''
+|2004-06
+| align="center" |''[[Lord President of Gallifrey (episode)|Lord President of Gallifrey]]''
+| align="center" |''[[Doctor Who: Revelation]]''<ref>K-9 later appears, as a guest character, in [[Inquisition|''Inquisition'']] and [[Doctor Who: Vengeance|''Doctor Who: Vengeance'']]. He also went onto as a main character in, spinoff series, [[Panopticon (TV Series)|''Panopticon'']], from [[Period of Adjustment|''Period of Adjustment'']] to [[Maybe It's Imaginary|''Maybe It's Imaginary'']].</ref>
+|-
+| rowspan="3" scope="row" |'''[[Romana]]'''
 |[[Mary Tamm]]
 | rowspan="2" | 1978-81
 | rowspan="2" align="center" |''[[The Ribos Operation (serial)|The Ribos Operation]]''
+| rowspan="2" align="center" |''Warriors' Gate''<ref>Romana later appears, as a guest character, in [[The Five Doctors (episode)|''The Five Doctors'']], [[Lungbarrow (serial)|''Lungbarrow'']], [[The Reverent Peril (serial)|''The Reverent Peril'']] and [[The Lords of Time (episode)|''The Lords of Time'']].</ref>
-| colspan="2" rowspan="2" align="center" |''Warriors' Gate''
 |-
 |[[Lalla Ward]]
+|-
+|[[Mary Tamm]]
+|2003
+| align="center" colspan="2" |[[The Sands of Time (serial)|''The Sands of Time'']]<ref>Romana later appears, as a guest character, in [[Doctor Who (2003)|''Doctor Who'']].</ref>
 |-
 | scope="row" |'''[[Adric]]'''
@@ Line 144: / Line 155: @@
 | 1980-82
 | align="center" |''[[Full Circle (serial)|Full Circle]]''
-| colspan="2" align="center" |''[[Earthshock|<nowiki/>]][[Earthshock (serial)|Earthshock]]''<ref>Adric goes onto make cameo appearances in ''[[Time-Flight (serial)|Time-Flight]]'' and ''[[The Caves of Androzani (serial)|The Caves of Androzani]]''.</ref>
+| align="center" |''[[Earthshock|<nowiki/>]][[Earthshock (serial)|Earthshock]]''<ref>Adric later appears, as a cameo, in ''[[Time-Flight (serial)|Time-Flight]]'' and ''[[The Caves of Androzani (serial)|The Caves of Androzani]]''.</ref>
 |-
-| scope="row" |'''[[Nyssa]]'''
+| rowspan="2" scope="row" |'''[[Nyssa]]'''
-|[[Sarah Sutton]]
+| rowspan="2" |[[Sarah Sutton]]
 | 1981-83
 | align="center" |[[The Keeper of Traken (serial)|''The Keeper of Traken'']]
-| colspan="2" |''[[Terminus (serial)|Terminus]]''<ref>Sarah Sutton reappears in a cameo appearance, as Nyssa, in ''The Caves of Androzani''.</ref>
+| align="center"|''[[Terminus (serial)|Terminus]]''<ref>Nyssa later appears, as a cameo, in ''[[The Caves of Androzani (serial)|The Caves of Androzani]]''.</ref>
 |-
+|2003
-| scope="row" |'''[[Tegan Jovanka]]'''
+| align="center" colspan="2" |[[Creatures of Beauty (episode)|''Creatures of Beauty'']]<ref>Nyssa later appears, as a guest character, in [[Doctor Who (2003)|''Doctor Who'']].</ref>
-|[[Janet Fielding]]
+|-
+| rowspan="2" scope="row" |'''[[Tegan Jovanka]]'''
+| rowspan="2" |[[Janet Fielding]]
 | 1981-84
 | align="center" |''Logopolis''
-| colspan="2" |''[[Resurrection of the Daleks|<nowiki/>]][[Resurrection of the Daleks (serial)|Resurrection of the Daleks]]''<ref>Janet Fielding goes onto make a cameo appearance, as Tegan, in ''The Caves of Androzani''.</ref>
+| align="center"|''[[Resurrection of the Daleks|<nowiki/>]][[Resurrection of the Daleks (serial)|Resurrection of the Daleks]]''<ref>Tegan Jovanka later appears, as a cameo, in ''[[The Caves of Androzani (serial)|The Caves of Androzani]],'' and, as a guest character, in [[The Lords of Time (episode)|''The Lords of Time'']].</ref>
+|-
+|2009
+| align="center"|[[Delayed Indefinitely (episode)|''Delayed Indefinitely'']]
+| align="center"|[[Brave New Town (episode)|''Brave New Town'']]
 |-
 | scope="row" |'''[[Vislor Turlough]]'''
@@ Line 162: / Line 180: @@
 | 1983-84
 | align="center" |''[[Mawdryn Undead (serial)|Mawdryn Undead]]''
-| colspan="2" align="center" |''[[Planet of Fire (serial)|Planet of Fire]]<ref>Mark Strickson goes onto make a cameo appearance in ''The Caves of Androzani'', as Turlough.</ref>''
+| align="center" |''[[Planet of Fire (serial)|Planet of Fire]]<ref>Vislor Turlough later appears, as a cameo, in ''T[[The Caves of Androzani (serial)|he Caves of Androzani]].''</ref>''
 |-
 | scope="row" |'''[[Peri Brown]]'''
@@ Line 168: / Line 186: @@
 | 1984-86[[Doctor Who (season 21)|<nowiki/>]]
 | align="center" |''Planet of Fire''
-| colspan="2" align="center" |''[[The Trial of a Time Lord|<nowiki/>]][[The Trial of a Time Lord (serial)|The Trial of a Time Lord]]''
+| align="center" |''[[The Trial of a Time Lord|<nowiki/>]][[The Trial of a Time Lord (serial)|The Trial of a Time Lord]]''<ref>Peri Brown later appears, as a guest character, in [[The Lords of Time (episode)|''The Lords of Time'']].</ref>
 |-
-| scope="row" |'''[[Mel Bush]]'''
+| rowspan="2" scope="row" |'''[[Mel Bush]]'''
-|[[Bonnie Langford]]
+| rowspan="2" |[[Bonnie Langford]]
 | 1986-87
 | align="center" |''The Trial of a Time Lord''
-| colspan="2" align="center" |''[[Dragonfire (serial)|Dragonfire]]''
+| align="center" |''[[Dragonfire (serial)|Dragonfire]]''<ref>Mel Bush's voice is heard during the Seventh Doctor's regeneration scene in [[Blood and Iron (serial)|''Blood and Iron'']].</ref>
 |-
+|2003
-| scope="row" |'''[[Ace McShane|Ace]]'''
+| align="center" colspan="2" |[[The Horrors of War (serial)|''The Horrors of War'']]<ref>Mel Bush later appears, as a guest character, in [[Doctor Who (2003)|''Doctor Who'']].</ref>
-|[[Sophie Aldred]]
+|-
-| 1987-90,
+| rowspan="3" scope="row" |'''[[Ace]]'''
+| rowspan="3" |[[Sophie Aldred]]
+| 1987-90
 | align="center" |''Dragonfire''
+| align="center" |[[Ice Time (serial)|''Ice Time'']]<ref>Ace's voice is heard during the Seventh Doctor's regeneration scene in [[Blood and Iron (serial)|''Blood and Iron'']] and she later appears, as a guest character, in [[The Lords of Time (episode)|''The Lords of Time'']].</ref>
-| align="center" |[[Ice Time (serial)|''Ice Time'']]
+|-
-|[[Demons of the Past|''Demons of the Past'']]
+|2003
+| align="center" colspan="2" |[[LIVE 34 (episode)|''LIVE 34'']]<ref>Ace later appears, as a guest character, in [[Doctor Who (2003)|''Doctor Who'']].</ref>
+|-
+|2005-06
+| align="center" |[[Everlasting War (episode)|''Everlasting War'']]
+| align="center" |[[Demons of the Past (episode)|''Demons of the Past'']]<ref>Ace later appears, as a cameo, in [[Doctor Who: Revelation|''Doctor Who: Revelation'']]. She also appeared, as a main character, in, spinoff series, [[Rebel Zero (Mini-Series)|''Rebel Zero'']].</ref>
 |-
 |[[Katie Tollinger|'''Katie Tollinger''']]
 |[[Julia Sawalha]]
 |1990-92
-|[[Crime of the Century (serial)|''Crime of the Century'']]
+| align="center" |[[Crime of the Century (serial)|''Crime of the Century'']]
+| align="center" |[[Transit (serial)|''Transit'']]<ref>Katie Tollinger later appears, as a guest character, in [[Ashes to Ashes, Dust to Dust (serial)|''Ashes to Ashes, Dust to Dust'']], ''[[Night of the Angels (serial)|Night of the Angels]], [[The Dance of the Devil (episode)|The Dance of the Devil]],'' ''[[Doctor Who (2003)|Doctor Who]], [[Return to Earth (episode)|Return to Earth]]'' and ''[[Mad World]].'' She also went onto appear as a main character in, spinoff series, [[Leftover (TV Series)|''Leftover'']].</ref>
-| colspan="2" |[[Transit (serial)|''Transit'']]
 |-
-|'''[[Henrick]]'''
+|'''[[Henrick|Benjamin Henrick]]'''
 |[[John Banks]]
 |1990-94
-|[[Night Thoughts (serial)|''Night Thoughts'']]''<ref>Although Henrick only became a companion beginning with Season 28, John Banks had made multiple appearances as versions of the character in Season 27, and had fulfilled a companion role in [[Blood and Iron (serial)|Blood and Iron]].</ref>''
+| align="center" |[[Night Thoughts (serial)|''Night Thoughts'']]''<ref>Although Henrick only became a companion beginning with Season 28, John Banks had made multiple appearances as versions of the character in Season 27, and had fulfilled a companion role in [[Blood and Iron (serial)|Blood and Iron]].</ref>''
-| colspan="2" |[[The Prisoner of Time (serial)|''The Prisoner of Time'']]
+| align="center" |[[The Prisoner of Time (serial)|''The Prisoner of Time'']]<ref>Benjamin Henrick later appears, as a guest character, in [[End of Days (serial)|''End of Days'']] from, the spinoff series, [[Leftover (TV Series)|''Leftover'']].</ref>
 |-
-|[[Bernice Summerfield|'''Bernice Summerfield''']]
+| rowspan="2" |[[Bernice Summerfield|'''Bernice Summerfield''']]
-|[[Lisa Bowerman]]
+| rowspan="2" |[[Lisa Bowerman]]
 |1992-95
-|[[Love and War (serial)|''Love and War'']]
+| align="center" |[[Love and War (serial)|''Love and War'']]
-| colspan="2" |[[Hatred of the Daleks (serial)|''Hatred of the Daleks'']]
+| align="center" |[[Hatred of the Daleks (serial)|''Hatred of the Daleks'']]<ref>Bernice Summerfield later appears, as guest character, in [[The Reckoning of Shadows (serial)|''The Reckoning of Shadows'']].</ref>
 |-
+|2003
-|[[Janet Wells|'''Janet Wells''']]
+| align="center" colspan="2" |''[[The Societal Step (episode)|The Societal Step]]''<ref>Bernice Summerfield later appears, as a guest character, in [[Doctor Who (2003)|''Doctor Who'']].</ref>
-|[[Rakie Ayola]]
+|-
+| rowspan="2" |[[Janet Wells|'''Janet Wells''']]
+| rowspan="2" |[[Rakie Ayola]]
 |1996-98
-|[[Revenge of the Master (serial)|''Revenge of the Master'']]
+| align="center" |[[Revenge of the Master (serial)|''Revenge of the Master'']]
-| colspan="2" |[[The Web of Time (serial)|''The Web of Time'']]
+| align="center" |[[The Web of Time (serial)|''The Web of Time'']]<ref>Janet Wells later appears, as a cameo, in [[The Chimes of Midnight (serial)|''The Chimes of Midnight'']].</ref>
+|-
+|2003
+| align="center" colspan="2" |[[Spare Parts (serial)|''Spare Parts'']]<ref>Janet Wells later appears, as a guest character, in [[Doctor Who (2003)|''Doctor Who'']].</ref>
 |-
 |[[Sammy Thompson|'''Sammy Thompson''']]
 |[[Laurie Holden]]
 |1998-2001
-|[[The Hail Mary (serial)|''The Hail Mary'']]
+| align="center" |[[The Hail Mary (serial)|''The Hail Mary'']]
+| align="center" |[[Night of the Angels (serial)|''Night of the Angels'']]<ref>Sammy Thompson later appears, as a guest character, in ''[[Mad World]].'' She also went onto appear as a main character in, spinoff series, [[Leftover (TV Series)|''Leftover'']], from [[Voyage to the New World (episode)|''Voyage to the New World'']], after having previously appeared, as a cameo, in ''[[The Doctored Papers (episode)|The Doctored Papers]].''</ref>
-| colspan="2" |[[Night of the Angels (serial)|''Night of the Angels'']]
 |-
 |[[Lou Madison|'''Lou Madison''']]
 |[[Gillian Kearney]]
 |2000-01
-|[[The Puppet Master (serial)|''The Puppet Master'']]
+| align="center" |[[The Puppet Master (serial)|''The Puppet Master'']]
-| colspan="2" |[[The Time of the Daleks (serial)|''The Time of the Daleks'']]
+| align="center" |[[The Time of the Daleks (serial)|''The Time of the Daleks'']]
 |-
 |[[Sandra Armstrong|'''Sandra Armstrong''']]
 |[[Anna Hope]]
 |2002-03
-|[[No Sky in Space (serial)|''No Sky in Space'']]
+| align="center" |[[No Sky in Space (serial)|''No Sky in Space'']]
+| align="center" |''[[Doctor Who (2003)|Doctor Who]]''<ref>Sandra Armstrong went onto appear, as a guest character, in [[The Confrontation of the Wicked (episode)|''The Confrontation of the Wicked'']]. She also appeared, as a cameo, in [[Occupation|''Occupation'']] from, spinoff series, [[Cold Front (TV Series)|''Cold Front'']].</ref>
-| colspan="2" |''[[Doctor Who (2003)|Doctor Who]]''
 |-
 |[[Emma Lewis|'''Emma Lewis''']]
 |[[Devika Parikh]]
 | rowspan="2" |2020-21
-| rowspan="2" |[[The Reckoning (serial)|''The Reckoning'']]
+| align="center"  rowspan="2" |[[Doctor Who: The New Renegade (TV Series)|TNR]]: [[The Reckoning (serial)|''The Reckoning'']]
-| colspan="2" rowspan="2" |[[The Godful Universe (episode)|''The Godful Universe'']]
+| align="center"  rowspan="2" |[[Doctor Who: The New Renegade (TV Series)|TNR]]: [[The Godful Universe (episode)|''The Godful Universe'']]
 |-
 |'''[[Dustin Barnett]]'''
 |[[Teddy Lane Jr.]]
 |-
-|[[Gali Lewis]]
+|'''[[Helena Valentine]]'''
+|[[Sigourney Weaver]]
+|2021
+| align="center" |[[Doctor Who: The New Renegade (TV Series)|TNR]]: [[The Godless Universe (episode)|''The Godless Universe'']]<ref>Helena Valentine, in her true identity as The Hal, previously throughout, spinoff series, [[Panopticon (TV Series)|''Panopticon'']], making recurring appearances from [[The Hal (episode)|''The Hal'']] onward. She also appeared in the [[Cold Front (TV Series)|''Cold Front'']] episodes, ''[[Aftermath (episode)|Aftermath]]'' and ''[[Ascension (episode)|Ascension]].''</ref>
+| align="center" |[[Doctor Who: The New Renegade (TV Series)|TNR]]: [[Vex (episode)|''Vex'']]<ref>Despite appearing in episodes, as a main character, following [[Vex (episode)|''Vex'']], Helena Valentine ceases to be a companion after her true identity is revealed.</ref>
+|-
+|[[Gali Lewis|'''Gali Lewis''']]
 |[[Audra McDonald]]
 | rowspan="2" |2023-
-| colspan="3" |To Be Announced<ref>Gali Lewis first appeared in [[Refuge (episode)|''Refuge'']] in 2020.</ref>
+| align="center" colspan="2" |[[Doctor Who: The New Renegade (TV Series)|TNR]]: To Be Announced<ref>Gali Lewis first appeared in [[Refuge (episode)|''Refuge'']] in 2020.</ref>
 |-
-|[[Amanda Theodore]]
+|[[Amanda Theodore|'''Amanda Theodore''']]
 |[[T'Nia Miller]]
-| colspan="3" |To Be Announced<ref>Amanda Theodore first appeared in ''[[Those Who Lead (serial)|Those Who Lead]]'' in 2014.</ref>
+| align="center" colspan="2" |[[Doctor Who: The New Renegade (TV Series)|TNR]]: To Be Announced<ref>Amanda Theodore first appeared in ''[[Those Who Lead (serial)|Those Who Lead]]'' in 2014.</ref>
 |-
 |[[Angela Jensen|'''Angela Jensen''']]
 |[[Jacqueline Pearce]]
 |2007-08
-|[[The Silurian Awakening|''The Silurian Awakening'']]
+| align="center" |[[The Silurian Awakening|''The Silurian Awakening'']]
-| colspan="2" |[[Burning Books|''Burning Books'']]''<ref>Despite leaving as a companion in [[Burning Books]], Angela returned at the end of Season 45 in [[Cold Star]] and then the following year in [[Cannon Fodder|''Cannon Fodder'']] and [[Mad World|''Mad World'']]. <span>Jacqueline Pearce later reprised her role as Angela in </span>''[[Leftover: End of Days]]''<span>, the </span>[[Cold Front (TV Series)|Cold Front]]<span> premiere episode </span>''[[Rivals]] ''and in ''[[Doctor Who: Until the World Ends]]''.</ref>''
+| align="center" |[[Burning Books|''Burning Books'']]''<ref>Angela Jensen went onto appear, as a guest character, in ''[[Cold Star (episode)|Cold Star]], [[Cannon Fodder (episode)|Cannon Fodder]]'', ''[[Mad World (episode)|Mad World]] and [[Doctor Who: Until the World Ends]]''. She also appeared, as a guest character, in the [[Leftover (TV Series)|''Leftover'']] serial, [[End of Days (serial)|''End of Days'']], and as a guest character, in [[Rivals (episode)|''Rivals'']] from, spinoff series, [[Cold Front (TV Series)|''Cold Front'']].</ref>''
 |-
 |[[Lizzie Clarke|'''Lizzie Clarke''']]
 |[[Sophie Okonedo]]
 |2007-09
-|[[The Scream|''The Scream'']]
+| align="center" |[[The Scream|''The Scream'']]
+| align="center" |''[[Mad World]]''<ref>Lizzie Clarke later appears, as a guest character, in [[The Godful Universe (episode)|''The Godful Universe'']], from, the spinoff series, [[Doctor Who: The New Renegade (TV Series)|''Doctor Who: The New Renegade'']].</ref>
-| colspan="2" |''[[Mad World]]''
 |-
 |[[Rosalyn Clyne|'''Rosalyn Clyne''']]
 |[[Felicity Jones]]
-|2018-
+|2018-21
-| colspan="3" |[[Doctor Who: Until the World Ends]]
+| align="center" |[[Doctor Who: Until the World Ends]]
+| align="center" |''[[Doctor Who: The Upgrade from Tomorrow]]''
 |-
 |'''[[Zenla]]'''
 |[[Juliet Landau]]
-| rowspan="2" |2010-12
+|rowspan="2" |2010-12
-| rowspan="2" |[[Doctor Who: Vengeance|''Doctor Who: Vengeance'']]
+| align="center"  rowspan="2" |[[Doctor Who: Vengeance|''Doctor Who: Vengeance'']]
-| colspan="2" |[[Doctor Who: Endgame|''Doctor Who: Endgame'']]''<ref>[[Juliet Landau]] also starred as Zenla in a regular capacity, on the spinoff series, [[Panopticon (TV Series)|Panopticon]]. She also appeared, played by [[Honor Blackman]], in ''[[Remnants (episode)|Remnants]]'' and played once again by Landau in ''[[The Third Planet (serial)|The Third Planet]]''.</ref>''
+| align="center" |[[Doctor Who: Endgame|''Doctor Who: Endgame'']]''<ref>Zenla later appeared, as a guest character, in [[Remnants (episode)|''Remnants'']] (played by [[Honor Blackman]], before appearing, as a guest character, in ''[[Remembrance of the Gaians (episode)|Remembrance of the Gaians]] and [[The Third Planet (serial)|The Third Planet]]'' (played by Juliet Landau. She was also main character in, spinoff series, [[Panopticon (TV Series)|''Panopticon'']], from [[The Condemned (episode)|''The Condemned'']].</ref>''
 |-
 |[[Chris Parsons|'''Chris Parsons''']]
 |[[Dougray Scott]]
-| colspan="2" |''Doctor Who: Endgame''
+| align="center"|''Doctor Who: Endgame''
 |-
 |[[Susan Flemyng|'''Susan Flemyng''']]
 |[[Julie Walters]]
 |2010
+| align="center" colspan="2" |[[Hark! The Weeping Angels Sing|''Hark! The Weeping Angels Sing'']]<ref>Susan Flemyng first appeared as a companion in Toymaker-realm movie, [[Dr. Who and the Daleks|''Dr. Who and the Daleks'']] (see below), before becoming a main-universe companion. She later appeared in [[Daleks vs Mechons|''Daleks vs Mechons'']] from, spinoff series, [[Cold Front (TV Series)|''Cold Front'']].</ref>
-| colspan="3" |[[Hark! The Weeping Angels Sing|''Hark! The Weeping Angels Sing'']]
 |-
 |[[Gemma Legato|'''Gemma Legato''']]
 |[[Emer Kenny]]
 |2011
-|[[Broken Shackles|''Broken Shackles'']]
+| align="center" |[[Broken Shackles|''Broken Shackles'']]
-| colspan="2" |[[Evil of the Gaians|''Evil of the Gaians'']]''<ref>Gemma later returned in both [[Destiny of the Gaians (serial)|Destiny of the Gaians]] and [[The Third Planet (serial)|The Third Planet]], as well as the [[Cold Front (TV Series)|Cold Front]] episode, [[Consequences]].</ref>''
+| align="center" |[[Evil of the Gaians|''Evil of the Gaians'']]''<ref>Gemma Legato later appeared, as a guest character, in [[Destiny of the Gaians (serial)|''Destiny of the Gaians'']] and [[The Third Planet (serial)|''The Third Planet'']], as well as [[Consequences (episode)|''Consequences'']] from, the spinoff series, [[Cold Front (TV Series)|''Cold Front'']].</ref>''
+|-
+| rowspan="2" |[[Erin Stevenson|'''Erin Stevenson''']]
+| rowspan="2" |[[Montserrat Lombard]]
+|2014-15
+| align="center" |[[God Save the Queen (episode)|''God Save the Queen'']]
+| align="center" |[[The Slave Master (episode)|''The Slave Master'']]<ref>Erin Stevenson later appears, as a guest character, in [[The Third Planet (serial)|''The Third Planet'']].</ref>
 |-
+|2020-23
-|[[Erin Stevenson|'''Erin Stevenson''']]
+| align="center" |[[Doctor Who: Adventures (TV Series)|ADV]]: [[The Dalek Invasion of Sussex (episode)|''The Dalek Invasion of Sussex'']]
-|[[Montserrat Lombard]]
+| align="center" |[[Doctor Who: Adventures (TV Series)|ADV]]: [[Exterminate! (serial)|''Exterminate!'']]
-| rowspan="2" |2014-15
-|[[God Save the Queen (episode)|''God Save the Queen'']]
-| colspan="2" |[[The Slave Master (episode)|''The Slave Master'']]
 |-
 |[[Hogan Cox|'''Hogan Cox''']]
 |[[Bernard Cribbins]]
+|2014-15
-|[[Those Who Lead (serial)|''Those Who Lead'']]
-| colspan="2" |''[[Destiny of the Gaians (serial)|Destiny of the Gaians]]''
+| align="center" |[[Those Who Lead (serial)|''Those Who Lead'']]
+| align="center" |''[[Destiny of the Gaians (serial)|Destiny of the Gaians]]''
 |-
-|[[Kyle Harrison|'''Kyle Harrison''']]
+| rowspan="2" |[[Kyle Harrison|'''Kyle Harrison''']]
-|[[William Moseley]]
+| rowspan="2" |[[William Moseley]]
 |2015
-|[[Queen of the Daleks (episode)|''Queen of the Daleks'']]''<ref>Kyle previously appeared in [[God Save the Queen (episode)|''God Save the Queen'']] and [[Flatline (episode)|''Flatline'']] before becoming a full-time companion.</ref>''
+| align="center" |[[Queen of the Daleks (episode)|''Queen of the Daleks'']]''<ref>Kyle previously appeared in [[God Save the Queen (episode)|''God Save the Queen'']] and [[Flatline (episode)|''Flatline'']] before becoming a full-time companion.</ref>''
-| colspan="2" |''[[The Slave Master (episode)|The Slave Master]]''
+| align="center" |''[[The Slave Master (episode)|The Slave Master]]''<ref>Kyle Harrison later appears, as a guest character, in [[The Third Planet (serial)|''The Third Planet'']].</ref>
+|-
+|2020-23
+| align="center" |[[Doctor Who: Adventures (TV Series)|ADV]]: [[The Dalek Invasion of Sussex (episode)|''The Dalek Invasion of Sussex'']]
+| align="center" |[[Doctor Who: Adventures (TV Series)|ADV]]: [[Exterminate! (serial)|''Exterminate!'']]
 |-
 |[[Raleigh Baker-Mitchell|'''Raleigh Baker-Mitchell''']]
 |[[Sarah Winter]]
 |2015-16
-|[[The Trial of the Damned (episode)|''The Trial of the Damned'']]''<ref>While first appearing in [[The Trial of the Damned (episode)|The Trial of the Damned]], [[Sarah Winter]] isn't credited as a companion until [[The Dimensions of Space and Time (episode)|''The Dimensions of Space and Time'']]''.''</ref>''
+| align="center" |[[The Trial of the Damned (episode)|''The Trial of the Damned'']]''<ref>While first appearing in [[The Trial of the Damned (episode)|The Trial of the Damned]], [[Sarah Winter]] isn't credited as a companion until [[The Dimensions of Space and Time (episode)|''The Dimensions of Space and Time'']]''.''</ref>''
+| align="center" |[[The Last Winter (episode)|''The Last Winter'']]<ref>Raleigh Baker-Mitchell later appears, as a guest character, in [[Angels of Time (episode)|''Angels of Time'']], [[False Prophets (serial)|''False Prophets'']] and ''[[The Daleks' Master Plan (2022 serial)|The Daleks' Master Plan]].'' She also went onto appear, as a main character, in, spinoff series, [[The Elysium (TV Series)|''The Elysium'']], from [[The Foreseers (episode)|''The Foreseers'']].</ref>
-| colspan="2" |[[The Last Winter (episode)|''The Last Winter'']]
 |-
 | rowspan="2" |[[Pete Fletcher|'''Pete Fletcher''']]
 | rowspan="2" |[[Daniel Adegboyega]]
 |2016-18
-|[[The Greenhouse Effect (episode)|''The Greenhouse Effect'']]
+| align="center" |[[The Greenhouse Effect (episode)|''The Greenhouse Effect'']]
-| colspan="2" |[[The New Empire (serial)|''The New Empire'']]
+| align="center" |[[The New Empire (serial)|''The New Empire'']]
 |-
 |2022
-| colspan="3" |''[[The Restoration (episode)|The Restoration]]''
+| align="center" colspan="2" |''[[The Restoration (episode)|The Restoration]]''
 |-
-| rowspan="2" |[[Sally Brennen|'''Sally Brennen''']]
+| rowspan="3" |[[Sally Brennen|'''Sally Brennen''']]
-| rowspan="2" |[[Shelley King]]
+| rowspan="3" |[[Shelley King]]
-|2017-18
+|2017
-|[[The Demons of Madison Road (episode)|''The Demons of Madison Road'']]
+| align="center" |[[The Demons of Madison Road (episode)|''The Demons of Madison Road'']]
+| align="center" |''[[False Prophets (serial)|False Prophets]]''
-| colspan="2" |''The New Empire''
+|-
+|2018
+| align="center" |''[[Friends on a Train (episode)|Friends on a Train]]''
+| align="center" |''The New Empire''
 |-
 |2022
-| colspan="3" |''[[The Restoration (episode)|The Restoration]]''
+| align="center" colspan="2" |''[[The Restoration (episode)|The Restoration]]''
 |-
 |[[Daniel Bevin|'''Daniel Bevin''']]
 |[[Pierce Brosnan]]
 |2017-18
-| colspan="3" |[[The Martian Equinox (serial)|''The Martian Equinox'']]
+| align="center" colspan="2" |[[The Martian Equinox (serial)|''The Martian Equinox'']]
 |-
 |[[Annie Downes|'''Annie Downes''']]
 |[[Jane Wymark]]
 |2018
-|''[[Friends on a Train (episode)|Friends on a Train]]<ref>Annie previously appeared in [[The Demons of Madison Road (episode)|''The Demons of Madison Road'']]'', [[The Haunting (episode)|The Haunting]] ''and [[The Sinister Minister (episode)|The Sinister Minister]] before becoming a companion.</ref>''
+| align="center" |''Friends on a Train<ref>Annie previously appeared in [[The Demons of Madison Road (episode)|''The Demons of Madison Road'']]'', [[The Haunting (episode)|The Haunting]] ''and [[The Sinister Minister (episode)|The Sinister Minister]] before becoming a companion.</ref>''
-| colspan="2" |''The New Empire''
+| align="center" |''The New Empire''
 |-
 | rowspan="2" |[[Bertie Reynolds|'''Bertie Reynolds''']]
 | rowspan="2" |[[Alex Jennings]]
 |2019
-|[[The Doomsday Cannon (serial)|''The Doomsday Cannon'']]
+| align="center" |[[The Doomsday Cannon (serial)|''The Doomsday Cannon'']]
-| colspan="2" |''[[Her Final Stand (serial)|Her Final Stand]]''
+| align="center" |''[[Her Final Stand (serial)|Her Final Stand]]''
 |-
 |2020-21
-|[[No Good Deed (serial)|''No Good Deed'']]
+| align="center" |[[No Good Deed (serial)|''No Good Deed'']]
-| colspan="2" rowspan="2" |[[Journey into the Unknown (serial)|''Journey into the Unknown'']]
+| align="center" rowspan="2" |[[Journey into the Unknown (serial)|''Journey into the Unknown'']]
 |-
 |'''[[Chrissie Finch]]'''
 |[[Jayd Johnson]]
 |2020-21
-|[[The Screams of Terror (serial)|''The Screams of Terror'']]
+| align="center" |[[The Screams of Terror (serial)|''The Screams of Terror'']]
+|-
+|'''[[Viv Kalanak]]'''
+|[[Jaye Griffiths]]
+|2023
+| align="center" colspan="2" |[[The Other World (serial)|''The Other World'']]<ref>Viv previously appeared in [[Her Final Stand (serial)|''Her Final Stand'']] and [[Homeland (serial)|''Homeland'']] before becoming a companion.</ref>
 |}
@@ Line 422: / Line 478: @@
 |[[The Third Dimension (episode)|''The Third Dimension'']]
 |''[[The Last Wonder (episode)|The Last Wonder]]''
+|-
+|[[Emma Legato|'''Emma Legato''']]
+|[[Kamila Bujalska]]
+|2022-
+|''[[The Liberation (episode)|The Liberation]]''
+|''TBA''
 |-
 ! colspan="5" |Mysteriet Doktorn