Frank Lupo Creator Stephen J. Cannell Creator, Executive Producer George Peppard Col. John "Hannibal" Smith Actor Mr. T Sgt. Bosco "B.A." Baracus Actor Dirk Benedict Lt. Templeton Peck Actor Dwight Schultz Capt. H.M. "Howling Mad" Murdock Actor Lance LeGault Col. Decker Guest Star Wendy Fulton Dr. Kelly Stevens - Veterinarian Guest Star Bill McKinney Royko Guest Star Paul Koslo Tanen Guest Star Gene Evans Darrow Guest Star John Ashley Producer Stephen Katz Writer Michael O'Herlihy Director