
| Donald Sutherland | ... | Capt. Benjamin Franklin 'Hawkeye' Pierce |

| Elliott Gould | ... | Capt. John Francis Xavier 'Trapper' McIntyre |

| Tom Skerritt | ... | Capt. Augustus 'Duke' Forrest |
 | Sally Kellerman | ... | Maj. Margaret 'Hot Lips' O'Houlihan |

| Robert Duvall | ... | Maj. Frank Marion 'Ferret Face' Burns |
 | Roger Bowen | ... | Lt. Col. Henry Braymore Blake |

| Rene Auberjonois | ... | Lt. Father Francis John Patrick Mulcahy |
 | David Arkin | ... | SSgt. Wade Douglas Vollmer |
 | Jo Ann Pflug | ... | Lt. Maria 'Dish' Schneider |
 | Gary Burghoff | ... | Corporal Walter Eugene O'Reilly |
 | Fred Williamson | ... | Capt. Oliver Harmon 'Spearchucker' Jones |

| Michael Murphy | ... | Capt. Ezekiel 'Me Lai' Marston IV |
 | Indus Arthur | ... | Lt. Leslie |
 | Ken Prymus | ... | Pvt. Seidman |
 | Bobby Troup | ... | SSgt. Gorman |
 | Kim Atwood | ... | Ho-Jon |
 | Timothy Brown | ... | Cpl. Judson (as Tim Brown) |
 | John Schuck | ... | Capt. Walter 'Painless' Waldowski |
 | Dawne Damon | ... | Lt. Storch |

| Carl Gottlieb | ... | Capt. 'Ugly John' Black |
 | Tamara Wilcox-Smith | ... | Capt. Bridget 'Knocko' McCarthy (as Tamara Horrocks) |
 | G. Wood | ... | Brig. Gen. Charlie Hammond |

| Bud Cort | ... | Pvt. Lorenzo Boone |
 | Danny Goldman | ... | Capt. Murrhardt |

| Corey Fischer | ... | Capt. Dennis Patrick Bandini |
| rest of cast listed alphabetically: |
 | Rick Neilan | ... | Hammond's Aide |
 | Stephen Altman | ... | Duke's 5-Year-Old Son (uncredited) |
 | Tommy Brown | ... | Football Player, 325th Evac. (uncredited) |
 | Buck Buchanan | ... | Football Player, 325th Evac. (uncredited) |
 | Craig Chudy | ... | Football Player (uncredited) |
 | Jack Concannon | ... | Football Player, 325th Evac. (uncredited) |

| Michael Consoldane | ... | Football Player, 325th Evac. (uncredited) |
 | Cathleen Cordell | ... | Capt. Peterson, Nurse Corps (uncredited) |
 | Ben Davidson | ... | Football Player (#88) 325th Evac. (uncredited) |
 | James B. Douglas | ... | Col. Wallace C. Merril (uncredited) |
 | Tom Falk | ... | Corporal (uncredited) |
 | John Fujioka | ... | Japanese Golf Pro (uncredited) |

| Sumi Haru | ... | Japanese Nurse (uncredited) |

| Buck Holland | ... | Helicopter pilot (uncredited) |
 | Susan Ikeda | ... | Japanese Caddie (uncredited) |
 | Dale Ishimoto | ... | Korean Doctor (uncredited) |
 | Jerry Jones | ... | Motor Pool Sergeant (uncredited) |
 | Joe Kapp | ... | Football Player, 325th Evac. (uncredited) |
 | Ted Knight | ... | Offstage Dialog (voice) (uncredited) |
 | Harvey Levine | ... | 2nd Lieutenant (uncredited) |
 | Weaver Levy | ... | Korean Doctor (uncredited) |
 | Marvin Miller | ... | Offstage Dialog (voice) (uncredited) |
 | John Myers | ... | Football Player, 325th Evac. (uncredited) |
 | Lloyd Nelson | ... | Offstage Voice (uncredited) |
 | Monica Peterson | ... | Pretty W.A.C. Receptionist (uncredited) |
 | Masami Saito | ... | Japanese Caddie (uncredited) |
 | Howard Schnellenberger | ... | Referee at football game (uncredited) |
 | Samantha Scott | ... | Nurse / Pin-up Model (uncredited) |
 | Noland Smith | ... | Football Player, 325th Evac. 'Superbug' (uncredited) |
 | Fran Tarkenton | ... | Football Player, 325th Evac. (uncredited) |

| Dianne Turley Travis | ... | Correspondent (uncredited) |
 | Johnny Unitas | ... | Football Player, 325th Evac. (uncredited) |

| Sal Viscuso | ... | P.A. Announcer (voice) (uncredited) |
 | Hiroko Watanabe | ... | Japanese Prostitute (uncredited) |
 | Howard Williams | ... | Football Player, 325th Evac. (uncredited) |
 | Tom Woodeschick | ... | Football Player, 325th Evac. (uncredited) |
 | Yoko Young | ... | Japanese Servant (uncredited) |