RIP: Conrad Janis, Who Played Mindy’s Dad on Mork & Mindy, Dies at 94. “A son of the noted New York art collectors and gallerists Sidney and Harriet Janis, Janis, who along with his brother took over the family business, the Sidney Janis Gallery, later in life, was also a successful and lifelong jazz trombonist who even at the height of his Mork & Mindy success performed regularly with his group, the Beverly Hills Unlisted Jazz Band…On the film side, Janis appeared in Airport 1975 (1974), The Happy Hooker (1975), Oh God! Book II (1980), Billy Crystal’s Mr. Saturday Night (1992) and Ben Stiller’s cult favorite  The Cable Guy (1996) starring Jim Carrey and Matthew Broderick.” And alongside Gary Busey in 1978’s The Buddy Holly Story, where he played a fictional version of Holly’s record producer.