Stewart Moss (born November 27, 1937 in Chicago, Illinois) is an American actor. He appeared in the John Wayne film In Harm's Way and The Hitchcock movie Topaz. He made eight guest appearances on Hogan's Heroes, starring Bob Crane, from 1965 to 1971. He also made two guest appearances on Perry Mason, first as murder victim David Cartwell in the 1964 episode, "The Case of the Paper Bullets," and Dan Swanson in "The Case of the Dead Ringer," in 1966 when star Raymond Burr doubled as Mason and murderer Grimes. He has appeared in such TV shows as Murder, She Wrote, Matlock, Riptide, Cagney and Lacey, Magnum, P.I., Barnaby Jones, Baa Baa Black Sheep episode "The Meatball Circus", The Rockford Files, Cannon, Kojak, Star Trek: The Original Series, The Silent Force, and Bonanza. He also wrote an episode of Trapper John, M.D. called "Old Man Liver". He is married to actress Marianne McAndrew and co-starred with her in the film The Bat People. He directed a stage production of "Sweet Charity" starring Bebe Neuwirth and won a Drama Logue award for directing the stage production of "Shadowbox" at Theatre East.