Between 1963 and 1989 seven different actors played the part.
When the play was over, students were able to question the actors playing both men.
He looked more like an actor playing a role than a real doctor.
He is an actor like all others, playing a part.
Four weeks later, the show was back on the air, with another actor playing the lead.
The actors played themselves and the audience became part of the performance.
The film thus has same character played by two different actors.
Because of this the Doctor could be played by different actors.
He also wanted to get away from having four actors to play 33 characters.
Most new actors play a part in high school and college plays or act with local groups.