Fan Casting The Master I in American Doctor Who - Doctors 4-5 (1974-1984)

Since Ricardo Montalban never died on the 70s, the American Doctor Who show never had a need to retire or replace him with the burnt master. Ricardo Montalban still leaves early in The Fourth Doctor's run however, because he has to film Fantasy Island. He'll return in the Fourth Doctor's final season however, just so that we can give him a proper sendoff as we introduce the New Master.