William Christopher (October 20, 1932–December 31, 2016) was an American actor, best known for his role as Father Francis Mulcahy on the CBS series M*A*S*H. For Hanna-Barbera, he was the voice of Bjørn in The Little Troll Prince.
When auditioning for his M*A*S*H role, Christopher essentially ignored the monologue prepared for him and instead ad-libbed a rambling speech in a priestly tone. While the producers were disappointed that he didn't deliver his prepared lines, they liked his performance and manner well enough to offer him the role--on the condition that from then on, he would stay with the script. Although his priest character was Roman Catholic, Christopher was actually a Methodist.
Christopher was a member of the Sigma Chi Fraternity and a longtime student of Homeric [classical] Greek. He and his wife, Barbara, had been married since 1957. They raised two sons, John and Ned. The latter is autistic.
- William Christopher at the Internet Movie Database