The first actor to portray
The Doctor in the
BBC television program, originally premiering as the first doctor on 23rd of November 1963 in "An Unearthly Child". His companion was his "Granddaughter",
Susan Foreman. He was replaced by
Patrick Throughton on the 5th of November 1966 in "The Power Of The
Daleks"
The Doctor: One day, I shall come back. Yes, I shall come back. Until then, there must be no regrets, no tears, no anxieties. Just go forward in all your beliefs, and prove to me I am not mistaken in mine. (William Hartnell as
The Doctor)