Second Doctor- Patrick Througton
With William Hartnell being ill, the writers had to find a way to replace the actor. They gave the Doctor the ability to “regenerate” when death threatens him, by changing his DNA. This allowed Patrick Troughton to take the role.
Matt Smith based the Eleventh Doctor off of the Second Doctor.
|Main aliases:||see list|
|Place of origin:||Gallifrey|
|First seen in:||The Tenth Planet|
|Main actor:||Patrick Troughton|
|Main voice actor:||Frazer Hines|