
| 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 | ... | Cpl. Walter Eugene 'Radar' 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, 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) |
As comedies go, it doesn't get much better than M*A*S*H! Script, direction, casting, music and acting are all at their very best in this satirical take on the Korean War - ironically, there is no army action played out during the movie, just the escapades of Elliot Gould, Donald Sutherland, et al where they are stationed to take in casualties of war.
From the opening shots we feel the slow mood of the film, yet if we look a little closer, we see comedy and havoc all around. This is in my opinion, Altman's finest piece - the film is superbly shot, showing fantastic long shots, typical of the era. Elliot Gould has never been so cool, and Donald Sutherland's dryness is sublime. The cast as a whole are the driving force behind this movie - the actor's clearly have taken time to learn their character's, and it really shows, right down to Radar's communication with the field Marshall (or whatever he is). It is very much a character driven movie.
The football game just shows what these people are really like - fun, scheming, lovable cheats - but it pays off because the opposition is so loathsome.
Beautifully written, shot, acted and the rest. Without a shadow of a doubt this is a 10 out of 10 and one of the best comedies around.