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 Marla Heasley Tawnia Baker Guest Star Tricia O'Neil Dr. Maggie Sullivan Guest Star Ed Lauter Major Douglas Kyle Guest Star Richard Kuss Harper Guest Star John Ashley Producer Richard Christian Matheson Writer Tom Szollosi Writer Michael Vejar Director