Exiled by the Time Lords to Earth, for a significant period of his life, the Third Doctor was a distinguished man of high class and gadgetry, offen tinkering away and privy with machines. He also liked to share his wisdom with those who had open minds, but his patience would quickly dissolve if something annoyed him. Those who got on his good side, soon found him to be a friendly fellow, while those who were against him soon found that this gentleman could get physical and held his own in a fight.
The technological limitations of the time period, and the constraints of his exile, offen made him feel frustrated and bitter. However he retained his endearing compassion towards his human companions, and he finally gained some mastery over the TARDIS as he dissected its inner-workings while it remained inoperable.
This incarnation of the Doctor worked for UNIT as their chief scientific adviser, and remained in their service even after his exile was ended. Unlike his other incarnations, he was quite willing to engage others physically, and cut a more dashing figure.
His foremost enemy was a fellow Time Lord, the Master. Although appalled by the disregard for life in the Master's schemes, the Doctor treated their relationship as somewhat of a friendly rivalry, even enjoying their battle of wits. The Master reflected an equally casual attitude back at him. The Doctor still held out hope that he could rehabilitate the Master, whom he had once considered a friend. Though the Master sometimes teamed up with the Doctor to deal with foes that threatened him, he always bent to dark and malicious desires which kept their neutral antagonism alive.
In the field, the Doctor was aided by Sergeant John Benton, Captain Mike Yates and Brigadier Alistair Gordon Lethbridge-Stewart. The Doctor offen took exception to the Brigadier's military approach, just as the Brigadier was offen irritated by the Doctor's air of superiority and seeming disregard for authority. Despite this, the two men eventually developed an easy mutual trust and strong friendship.
He was initially assisted in the laboratory by Dr Elisabeth Shaw. A capable scientist in her own right. She eventually left to peruse her own work, and the Doctor was given a new assistant, Jo Grant, she was bubblier and had less scientific training, but the Doctor found her a most useful companion both during and after his exile. They developed a great fondness for each other. Jo left UNIT to marry Clifford Jones.
Eventually thereafter, the Doctor was joined by the inquisitive Sarah Jane Smith. Her journalistic background proved both useful and hazardous in their travels together.
The Doctor eventually regenerated into a younger body after being exposed to large amounts of radiation during his efforts to stop the Eight Legs of Metebelis III. The price of correcting a mistake from the past.
Biography
Post-Regeneration
After being forced to regenerate before being exiled to Earth, (TV: The War Games) the freshly regenerated Doctor collapsed outside on 20th Century Earth, near a UNIT patrol. He was taken to a hospital unconscious, where he suffered numerous moments of consciousnes, before falling unconscious again.
Escaping from the hospital by appropriating an ornate outfit and commandeering a sporty antique roadster, the Doctor made his way to UNIT HQ to meet Brigadier Alistair Gordon Lethbridge-Stewart. However, he was uneasy about the Brigadier since their last meeting and eager to reclaim his TARDIS key to escape the planet. However, the Doctor found that not only had his knowledge on how to operate the TARDIS had been blocked, but also that the dematerialisation codes had been changed.
Learning that a swarm of power units for a non-physical Alien Intelligence known as the Nestene Conscious had an affinity for plastic, and planned on replacing key government and public figures with animated facsimiles called Autons, the Doctor agreed to work for UNIT for the time being.
With the help of Dr Elisabeth Shaw, the Doctor created a device to stop the Autons. The Brigadier feared that the Nestenes would return, and asked for the Doctor's continued assistance. The Doctor agreed to join UNIT as their scientific Advisor, using the identity of Dr. John Smith, in exchange for facilities to repair the TARDIS. He also requested similar clothes to the ornate outfit he had appropriated during his escape from the hospital, and a car like the sporty antique roadster he had also commandeered during the escape. (TV: Spearhead From Space)
UNIT Career Begins
Summoned by the Brigadier to an underground research centre on Wenley Moore, the Doctor and Liz met Silurians, a species who had gone into hibernation millions of years earlier, revived by power from the research centre. The Doctor strove for peace between the reptiles and humans and gained the trust of the Silurian Leader. However, a rebellious and intolerant young Silurian killed his leader and released a deadly virus that threatened to wipe out humanity.
The Doctor and Liz found an antidote, but the Silurians retaliated by taking over the research centre. They planned to destroy the Van Allen Belt, a natural barrier shielding the Earth from solar radiation harmful to humans, but beneficial to reptiles. The Silurians had to return to their caves when the Doctor overloaded the reactor, threatening a nuclear explosion. As the Silurians retreated to their base to go back into hibernation until the radiation in the area subsided, the Doctor stopped the reactor from exploding. The Brigadier, to the Doctor's disgust, ordered the Silurian base to be sealed off with explosives, killing the Silurians, (TV: Doctor Who And The Silurians, The Sleepers of Earth)
After Wenly Moore
The Doctor saved radiation-dependent alien ambassadors from General Carrington, a xenophobic retired astronaut, and arranged the exchange of the ambassadors for three captured astronauts. (TV: The Ambassadors of Death)
The Doctor, Liz and UNIT next began working as security at an experimental project to drill through the Earth's crust. The drill head started to leak an oily green liquid that transformed those who touched it into vicious, primeval, creatures who craved heat. The Doctor was transported by the partially repaired TARDIS console into a parallel universe in which the drilling project was further along. He worked with ruthless, alternative versions of his UNIT friends to save both universes. When the drilling site in the alternate universe was destroyed, it gave the Doctor information on the course the project would take. This let him save his own universe at the cost of the director of the operations becoming one of the creatures. (TV: Inferno)
Battles With The Master
The Doctor's new assistant at UNIT after Liz left was Jo Grant. After being warned about the Master coming to Earth, the Doctor convinced the Master to stop his alliance with the Nestenes, as the Nestenes would not distinguish between the Master and anyone else in their takeover, and the two worked together to fling the Nestenes back into space by "chang[ing] the polarity" whilst the transfer shift of the radio telescope that summoned the Nestene invasion force was still open. The Doctor had also stranded the Master on Earth after stealing the dematerialisation circuit of the Master's TARDIS. (TV: Terror of the Autons)
The Doctor visited Stangmoor Prison with Jo for a demonstration of the Keller Machine, a device to extract negative emotions from hardened criminals. The Doctor discovered that the Master was behind the machine, but also that he had lost control of it. The machine was destroyed along with the Thunderbolt missile the Master tried to launch at the World Peace Conference, but the Master recovered his dematerialisation circuit and escaped again in his TARDIS. (TV: The Mind of Evil)
When a seemingly benevolent alien species known as the Axons arrived, promising new means of energy, the Doctor immediately saw through their charade; they had no intention of helping Earth, instead they planned to drain it dry of all energy. The Doctor once again encountered the Master, who had been captured by Axos after leading them to Earth; the Doctor put on the pretence of abandoning his friends at UNIT while working with the Master to repair his TARDIS. While the Master escaped once again, the Doctor succeeded in trapping Axos in a time loop before departing himself. However, much to his displeasure, the Time Lords had anticipated him leaving Earth and so reprogrammed the TARDIS to always return him to the 20th century. (TV: The Claws of Axos)
When the Time Lords discovered the Master had stolen their secret file on the Doomsday Weapon, they sent the Doctor and Jo to retrieve it on the planet Uxarieus, where they met resistance with the Interplanetary Mining Corporation, who tried to claim rights to the planet with highly unethical means and forcing the colonists to vacate, despite them not being able to do so with an old, damaged ship.
Taking advantage of the standstill between IMC and the colonists, the Master posed as an Adjudicator who could overturn the decision in favour of IMC. The Doctor had little choice but to play up to the Master's whims after a native alien tribe had stolen the TARDIS. He learned the Master's disguise was a ploy to reach a forgotten alien civilisation on Uxarieus, planning to seize the power of one of their weapons. However, the Doctor met the primitives' intelligent leader in the civilisation's city. Because it was intelligent, the Doctor reasoned with it, convincing the guardian to destroy the weapon and all traces of its civilisation before the Master could misuse the technology it held. The Doctor reclaimed his TARDIS and left Uxarieus in the hands of a real Adjudicator. (TV: Colony in Space)
The Doctor tried to stop the Master, posing as a rural vicar, from summoning Azal, the last of the Dæmons, at Devil's End. Azal decided to give his power to the Master, and fired energy at the Doctor to kill him, until Jo stepped in front of the Doctor, asking Azal to kill her instead. This act of self-sacrifice did not make sense to Azal and the confusion destroyed him. The Master tried to escape in Bessie, but the Doctor's remote control brought the car back and the Master was finally captured by UNIT. (TV: The Dæmons)
Missions In Time
Freedom fighters from an alternate 22nd centurytried to thwart a Dalek invasion by coming to the 20th century to assassinate a delegate, Reginald Styles, at the second World Peace Conference in Auderly House. After following the guerrillas back to the 22nd century, the Doctor realised that Styles' actions had instead been performed by Shura, one of the fighters, in a misguided attempt to fulfil his mission. After travelling to the 20th century, the Doctor returned to ensure the evacuations of the delegates, having the Brigadier order his men to fall back and allow the Daleks to pass. The Daleks and Ogrons arrived in pursuit of the Doctor, but both were destroyed when Shura detonated his bomb. (TV: Day of the Daleks)
Personality
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Physical Appearance
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Other Information
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Behind the Scenes
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List of Appearances
Doctor Who
Season 7
Season 8
Season 9
Season 10
Season 11
- The Time Warrior
- Invasion of the Dinosaurs
- Death to the Daleks
- The Monster of Peladon
- Planet of the Spiders
20th Anniversary Special
Season 30
Season 32
Season 37
Season 39
- The Name's Shakespeare, William Shakespeare (Archival Footage)