Received the Earl Grey Award for his work in SCTV (1976) at the Gemini Theatre in Toronto. 
Was trained to be a social worker but got bit by the acting bug after taking a part in a production of "Godspell" in Toronto, Ontario.
His older brother died when Martin was 12, and, by age 20, both parents were dead, as well.
Graduated from Westdale High school in Hamilton, Ontario.
Won a Tony Award for best actor in a musical for his performance in the Broadway revival of Little Me. 
Brother-in-law of Bob Dolman.
Was supposed to host the 1994 season premiere of Saturday Night Live (1975), but he had to back out at the last minute. He was replaced by Steve Martin.