- Pat O'Brien
- Maj. Steve Lockhart
- Robert Ryan
- Capt. Dan Craig
- Ruth Hussey
- Lt. Ellen Foster
- Frank McHugh
- Sgt. Louis Leary
- Barton MacLane
- Sgt. Maguire
- Richard Martin
- Pfc. Jimmy Fowler
- Martha Vickers
- Sally Parker
- Russell Wade
- Lt. Tony 'Junior' Hewitt
- Edmund Glover
- Pvt. Miller
- Robert Andersen
- Lt. Harrigan
- Michael St. Angel
- Lt. Sherwood
- Patrick O'Moore
- Australian Doctor - Field Hospital
- Harry Brown
- Cook
- Steve Barclay
- A Soldier
- Tom Burton
- Orderly
- Patricia Cameron
- Nurse
- Gordon Carveth
- Truck Driver
- Cliff Clark
- Maj. Gen. Rider, Guadalcanal Marine Commander
- Harry Clay
- Wounded Marine
- Herbert Clifton
- Waiter
- James Conaty
- Officer in Pub
- James Damore
- Marine
- Robert Dane
- Lieutenant
- Richard Davies
- Instructor
- Jon Davison
- Officer on Bridge
- Frank Dawson
- Minister
- Don Dillaway
- Marine
- Christian Drake
- Orderly
- Blake Edwards
- Marine
- John Elliott
- Admiral
- Jimmy Evans
- Marine
- Edward Fielding
- Commander of Camp Elliott
- Harold Fong
- Japanese
- George Ford
- Happy - Pilot
- William Forrest
- Col. Bill Carter
- James Hamilton
- Marine
- J. Anthony Hughes
- Army Colonel
- Charles Irwin
- Doctor
- Selmer Jackson
- Colonel at Guadalcanal
- Jimmy Jordon
- Jackson
- Daun Kennedy
- Model
- Carl Kent
- Marine
- Mike Killian
- Shoe Gag Soldier
- Albert Law
- Japanese
- Eddie Lee
- Japanese Officer
- James B. Leong
- Japanese Officer
- Jack Louque
- Tank Driver
- Barry Macollum
- Innkeeper
- Audrey Manners
- Aussie W.A.A.F. / Audrey (uncredited)
- Greg McClure
- Marine
- Bert Moorhouse
- Transport Ship Captain
- Melvin Nix
- Marine
- Isabel O'Madigan
- Old News Vendor
- Stanley Price
- Marine with Leary in Foxhole
- Jack Reeves
- Marine
- John Rogers
- Australian Barman
- John Shaw
- Marine Gunner
- John Sheehan
- Arcade Proprietor
- Fred Sherman
- Aussie Cab Driver
- Laurie Sherman
- Communications Corp.
- Sammy Stein
- Sergeant
- Glen Vernon
- Marine in Recording Booth
- Emmett Vogan
- Admiral's Aide
- Steve Winston
- Corporal
- Eddie Woods
- Major on Homebound Ship's Deck
