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 Jamie Farr Cpl. Maxwell Klinger Guest Star Michael Lerner Captain Futterman Guest Star Johnny Haymer Sgt. Zelmo Zale Guest Star Susanne Zenor Nurse Murphy Guest Star Sheila Lauritsen Nurse Sheila Guest Star Patricia Stevens Lt. Mitchell, RN Guest Star