Alan Alda Capt. Benjamin Franklin "Hawkeye" Pierce Actor McLean Stevenson Lt. Col. Henry Blake Actor Wayne Rogers Capt. John McIntyre Actor Larry Linville Maj. Frank Burns Actor Gary Burghoff Cpl. Walter "Radar" O'Reilly Actor Loretta Swit Maj. Margaret Houlihan Actor William Christopher Father Francis Mulcahy Actor John Orchard Capt. 'Ugly John' Black Guest Star Lynnette Metty Lt. Nancy Griffin Guest Star Wayne Bryan Private Thompson Guest Star