After he left Doctor Who, he was replaced by Peter Purves in the "male companion" role. Upon the passing of Jon Pertwee in 1996, he became the oldest living cast member.
Acting was something I enjoyed doing as a young boy. I found myself drawn towards it. I kept it up when was in the Air Force and organised entertainments for other people. Then, after I left university, I went into rep and continued from there. I think I was rather typecast at first as the dashing young lieutenant or RAF officer, who always seemed to get killed.