John PetlockJohn Petlock was an actor, born 1934, died 2020.Movies (2)Gross Anatomy (1989)Copacabana (1985)TV (4)Columbo (1971)Family Ties (1982)Taxi (1978)The Fresh Prince of Bel-Air (1990)Genres John Petlock works insitcomcomedycrimedetectivedramainverted detective story