Moss' first appearance was in an episode of The Fugitive in 1964. His first film appearance was in In Harm's Way in 1965. Besides The Fugitive and Hogan's Heroes, Moss has also appeared in the television series, Perry Mason, Bonanza, Star Trek, The Invaders, Mannix, Love, American Style, Marcus Welby, M.D., Quincy, M.E., Baa Baa Black Sheep, Hart to Hart, Archie Bunker's Place, Trapper John, M.D. and Remington Steele. Among his film appearances were Pendulum, Zigzag, The Bat People, Catch-22, and The Last Married Couple in America, as well as the television films, Sarge (which later beame the TV series Sarge), The Missiles of October, The Last Hurrah, Guilty or Innocent: The Sam Sheppard Murder Case and Gunsmoke:The Long Ride. His last appearances were in an episode of Murder, She Wrote an