John Wayne
Sgt. John M. Stryker

John Agar
PFC Peter T. 'Pete' Conway

Adele Mara
Allison Bromley

Forrest Tucker
PFC Al J. Thomas

Wally Cassell
PFC Benny A. Regazzi

James Brown
PFC Charlie Bass

Richard Webb
PFC Dan 'Handsome' Shipley

Arthur Franz
Cpl. Robert C. Dunne / Narrator

Julie Bishop
Mary

James Holden
PFC 'Farmer' Soames

Peter Coe
PFC George Hellenpolis

Richard Jaeckel
PFC Frank Flynn

William Murphy
PFC Eddie Flynn

George Tyne
PFC Hart S. Harris

Hal Baylor
Pvt. J.E. 'Ski' Choynski

John McGuire
Capt. Joyce

Martin Milner
Pvt. Mike McHugh

David Clarke
Wounded Marine (uncredited)

Bruce Edwards
Marine (uncredited)

Dorothy Ford
Tall Girl (uncredited)

Carole Gallagher
USO Woman (uncredited)

Fred Graham
Officer (uncredited)

Don Haggerty
Colonel in Staff Car (uncredited)

I. Stanford Jolley
Forrestal (uncredited)

Dickie Jones
Scared Marine (uncredited)

Frank O'Connor
Waiter in Bar (uncredited)

Glen Vernon
Marine (uncredited)

Dick Wessel
Grenade Instructor (uncredited)

Ted White
Marine (uncredited)

Joy Windsor
USO Woman (uncredited)