 | Van Heflin | | Maj. Sam Huxley |
| Aldo Ray | | Pvt. / Pfc Andy Hookens |
| Mona Freeman | | Kathy |
| Nancy Olson | | Mrs. Pat Rogers |
| James Whitmore | | MSgt. Mac / Narrator |
| Raymond Massey | | Maj. Gen. Snipes |
| Tab Hunter | | Pvt. / Cpl. Dan 'Danny' Forrester |
| Dorothy Malone | | Mrs. Elaine Yarborough |
| Anne Francis | | Rae |
| William Campbell | | Pvt. 'Ski' Wronski |
| John Lupton | | Pvt. / Cpl. Marion 'Sister Mary' Hotchkiss |
| L.Q. Jones | | Pvt. L.Q. Jones |
| Perry Lopez | | Pvt. Joe Gomez - aka Spanish Joe |
| Fess Parker | | Pvt. Speedy |
| Jonas Applegarth | | Pvt. Lighttower - Navajo Phonetalker |
| Tommy Cook | | Cpl. Ziltch - Huxley's orderly |
| Felix Noriego | | Pvt. Crazy Horse - Navajo Phonetalker |
| Susan Morrow | | Susan - Ski's girl |
| Carleton Young | | Maj. Jim Wellman - Battalion Executive Officer |
| Rhys Williams | | Enoch Rogers |
| Allyn Ann McLerie | | Ruby - Waitress in Diner |
| Gregory Walcott | | Sgt. Jim Beller - Drill Instructor |
| Frank Ferguson | | Mr. Hector Walker |
| Sarah Selby | | Mrs. Forrester |
| Willis Bouchey | | Mr. Forrester |
| Lee Allen | | Minor Role |
| Roxanne Arlen | | Blonde Girl |
| David Armstrong | | Other Boy |
| Joan Arnold | | Cheap Dame |
| John Ayres | | Conductor |
| Rayford Barnes | | Marine Aide on Command Ship Off Saipan |
| Paul Barry | | Minor Role |
| Hal Bokar | | Marine |
| Budd Buster | | Old Man |
| Chick Chandler | | Capt. Chaplin |
| Dean Cromer | | Watkins |
| Glen Denning | | Seabags |
| Jack Downs | | Minor Role |
| Don Durant | | Marine |
| Bess Flowers | | Woman Seated at Table for Three |
