After studying journalism at Marquette University and serving in the United States Army Reserve in 1962, actor/director Charles Siebert studied drama at the London Academy of Music and Arts. He then returned to the States, where he performed on and off Broadway for many years with established actors like Maureen Stapleton and fellow up-and-comers like Dustin Hoffman. He also landed roles on several soap operas -- "Another World," "As the World Turns," and "Search for Tomorrow" -- before relocating to Los Angeles to pursue a feature film and television career. In 1976, he starred in the low budget cult horror film "Blue Sunshine" and landed small guest spots on various television programs, mainly cop shows and popular sitcoms of the time like "Barnaby Jones," "Kojak," "All in the Family," and "One Day at a Time." But it was his role for seven seasons as the likeable yet annoying Dr. Stanley Riverside II on the medical drama and "M.A.S.H." spin-off "Trapper John, M.D." that hit big for the actor. It also led him to become a director -- he helmed several episodes of the show from 1982 to 1986, its last season. He would go on to direct episodes of "Knots Landing," "Renegade," "Silk Stalkings," and the cult sword and sorcery shows "Xena: Warrior Princess" and "Hercules: The Legendary Journeys." Siebert retired from acting and directing in 2001.