American character actor Louis Quinn appeared on stage, screen, radio, and television, where he is best remembered for playing Roscoe on the '60s series 77 Sunset Strip. Quinn entered the entertainment industry as a writer for Orson Welles, Milton Berle, Don MacNeill, and other radio personalities. During the '40s, Quinn hosted a few popular radio variety shows. He got his start in television writing material for Milton Berle's television show The Texaco Hour. Quinn entered films as a character actor in the '50s and made occasional screen appearances through the mid-'70s.