Larry Gelbart Creator Alan Alda Capt. Benjamin Franklin "Hawkeye" Pierce Actor Harry Morgan Col. Sherman Potter Actor David Ogden Stiers Maj. Charles Emerson Winchester III Actor Mike Farrell Capt. B.J. Hunnicut Actor Gary Burghoff Cpl. Walter "Radar" O'Reilly Actor Loretta Swit Maj. Margaret Houlihan Actor Jamie Farr Cpl. Maxwell Klinger Actor William Christopher Father Francis Mulcahy Actor Johnny Yune North Korean Guest Star James Lough Driver Guest Star Johnny Haymer Sgt. Zelmo Zale Guest Star Kellye Nakahara Lt. Kellye Yamato, RN Guest Star Patricia Stevens Lt. Baker, RN Guest Star Raymond Singer Dr. Berman Guest Star Enid Kent Lt. Bigelow, RN Guest Star Tom Stovall The Sergeant Guest Star Peter Riegert Sgt. Zelmo Zale Guest Star William Flatley M.P. Sergeant Guest Star Kimiko Hiroshige Korean Woman Guest Star Carmine Scelza G.I. Guest Star