In 1977, he was cast as Major Charles Emerson Winchester III on the television series M*A*S*H, a role he would portray until the series' conclusion in 1983, and which earned him two Emmy Award nominations. He appeared prominently in the 1980s in the role of District Attorney Michael Reston in several Perry Mason television films, and voiced Cogsworth in the 1991 Walt Disney film Beauty and the Beast, as well as Dr. Jumba Jookiba in Disney's Lilo & Stitch (2002) and its sequels. He appeared in television again on the supernatural drama series The Dead Zone as Reverend Gene Purdy, a role he portrayed from 2002 to 2007.