Fourth Doctor's regeneration
The Fourth Doctor underwent his regeneration into the Fifth Doctor after falling from the Pharos Project telescope. (TV: Logopolis) This was the fourth regeneration of the 12-regeneration life cycle beginning with the First Doctor. (TV: The Time of the Doctor)
History[[edit] | [edit source]]
Anticipation[[edit] | [edit source]]
After receiving a summons from Gallifrey, and telling Sarah Jane Smith that he had to leave her behind to answer it, Sarah Jane asked the Doctor if the summons meant he would regenerate again, to which he voiced his own uncertainty. (TV: The Hand of Fear)
After crashing the TARDIS on the way to Shada, the Doctor briefly believed he had regenerated. (PROSE: Doctor Who and the Krikkitmen)
After seeing the Watcher in a dream, the Fourth Doctor thought of his next incarnation. (PROSE: Into the Silent Land)
Regeneration[[edit] | [edit source]]
As Doctor anticipated his death while dangling, his mind flashed memories of the Decayed Master, the Mark IV Dalek Leader, the Nomad Cyber-Leader, the Captain, Davros, Sontaran Commander Stor, Zygon Warlord Broton, and the Black Guardian. After the fall, he saw Sarah Jane Smith, Harry Sullivan, the Brigadier, Leela, K9 and Romana's first and second incarnations. While surrounded by his companions, the Doctor assured them that the moment of his death "had been prepared for", and beckoned the Watcher towards him. The Watcher merged with him, and the Doctor's form faded into the Watcher's with his fifth incarnation emerging from the Watcher. (TV: Logopolis)
Aftermath[[edit] | [edit source]]
During their 2526 attack on Earth, the Neomorph Cyber-Leader presented video records of the Doctor to his Lieutenant, including the Fourth Doctor's thwarting of the CyberNomads' attempt to destroy Voga, the planet of gold. Since their androids had not sighted any of the known incarnations, the Cyber-Leader concluded that the Doctor had regenerated again. (TV: Earthshock [+]Loading...["Earthshock (TV story)"])
During the Second Omega Crisis, President Borusa acknowledged that both he and the Fifth Doctor had regenerated when they met. (TV: Arc of Infinity [+]Loading...["Arc of Infinity (TV story)"])
Alternate realities[[edit] | [edit source]]
In the Warrior's universe, the Fourth Doctor's life ended prematurely when he, after destroying the Dalek incubators in the Genesis Incident, was mortally wounded by a prototype Dalek. The Doctor was enabled to regenerate by drinking an Elixir of Life provided by Narvin, becoming the Warrior. (AUDIO: Dust Devil)
