Burt Mustin was a salesman most of his life, but got his first taste of show business as the host of a weekly radio variety show on KDKA Pittsburgh in 1921. He appeared onstage in "Detective Story" at Sombrero Playhouse in Phoenix Arizona, and played the janitor in the movie version, (Histoire de détective (1951)), after moving to Hollywood. Hundreds of screen appearances later, he announced his retirement while filming an episode of Phyllis (1975). In the episode, his character married Mother Dexter, played by actress Judith Lowry. Lowry died one month before, and Mustin died one month after the episode aired.
