Jack Kosslyn rose to fame as an actor, gracing the silver screen many times over the course of his Hollywood career. Kosslyn kickstarted his acting career in various films such as the Glenn Langan sci-fi motion picture "The Amazing Colossal Man" (1957), the sci-fi fantasy "Attack of the Puppet People" (1958) with John Agar and "Maracaibo" (1958). He also appeared in "The Spider" (1958) and "War of the Colossal Beast" (1958) with Sally Fraser. He continued to act in productions like the fantasy "The Magic Sword" (1962) with Basil Rathbone, the dramatic musical "Play Misty for Me" (1971) with Clint Eastwood and the William Holden drama "Breezy" (1973). He also appeared in the sequel "Magnum Force" (1973) with Clint Eastwood. He also appeared in the TV special "Such Dust As Dreams Are Made On" (ABC, 1972-73). During the latter half of his career, he tackled roles in the Clint Eastwood action movie "The Eiger Sanction" (1975) and the thriller "Empire of the Ants" (1977) with Joan Collins. He also had a part in the TV miniseries "Blind Ambition" (1978-79). Kosslyn more recently acted on "Cheers" (NBC, 1982-1993).