 Brian DonlevyMaj. Geoffrey Caton | Maj. Geoffrey Caton |
 Macdonald CareyLt. Bruce Cameron | Lt. Bruce Cameron |
 Robert PrestonPvt. Joe Doyle | Pvt. Joe Doyle |
 William BendixPvt. Aloysius K. "Smacksie" Randall | Pvt. Aloysius K. "Smacksie" Randall |
 Albert DekkerShad McClosky | Shad McClosky |
 Walter AbelCmdr. Roberts | Cmdr. Roberts |
 Mikhail RasumnyIvan Probenzky | Ivan Probenzky |
 Rod CameronCapt. Pete Lewis | Capt. Pete Lewis |
 Bill GoodwinSgt. Higbee / Narrator (voice) | Sgt. Higbee / Narrator (voice) |
 Damian O'FlynnCapt. Bill Patrick | Capt. Bill Patrick |
 Frank AlbertsonJohnny Rudd | Johnny Rudd |
| JJoyce ArleenCynthia Caton (uncredited) | Cynthia Caton (uncredited) |
 Hugh BeaumontCaptain (uncredited) | Captain (uncredited) |
 Barbara BrittonSally Cameron (uncredited) | Sally Cameron (uncredited) |
 Hillary BrookeGirl at the Inn (uncredited) | Girl at the Inn (uncredited) |
 James BrownWounded Marine (uncredited) | Wounded Marine (uncredited) |
| RRobert CarsonMarine (uncredited) | Marine (uncredited) |
 Don CastlePvt. Cunkle (uncredited) | Pvt. Cunkle (uncredited) |
| LLuke ChanJapanese Admiral (uncredited) | Japanese Admiral (uncredited) |
| SSpencer ChanJapanese Captain (uncredited) | Japanese Captain (uncredited) |
| JJack ChapinSqueaky Simpkins (uncredited) | Squeaky Simpkins (uncredited) |
 Dane ClarkSparks (uncredited) | Sparks (uncredited) |
| RRuss ClarkSergeant Major (uncredited) | Sergeant Major (uncredited) |
| MMax ColeMarine Pilot (uncredited) | Marine Pilot (uncredited) |
| AAngelo CruzRodrigo (uncredited) | Rodrigo (uncredited) |
 Lester DorrMarine in Trench (uncredited) | Marine in Trench (uncredited) |
 Edward EarleCommander (uncredited) | Commander (uncredited) |
 Frank FaylenNot listed | Not listed |
| MMary FieldNot listed | Not listed |
 William ForrestNot listed | Not listed |
