Cast members of the television series MASH from left, are William Christopher, who played Father Mulcahy, Harry Morgan, Mike Farrell, Alan Alda, and Jamie Farr. Christopher died Saturday, Dec. 31 at age 84. William Christopher, who played the unassuming U.S. Army chaplain, Father Mulcahy, struggling to bring spiritual comfort to an anarchic surgical unit during the Korean War on the long-running hit TV series MASH, died on Saturday.