- Jack Lemmon
- Lt. Rip Crandall
- Ricky Nelson
- Ens. Tommy Hanson
- John Lund
- Lt. Cmdr. Wilbur Vandewater
- Chips Rafferty
- Patterson
- Tom Tully
- Capt. McClung
- Joby Baker
- Josh Davidson
- Warren Berlinger
- Radioman A.J. Sparks
- Patricia Driscoll
- Maggie
- Mike Kellin
- Chief Mate Jack MacCarthy
- Richard Anderson
- Lt. Dennis Foster
- Alvy Moore
- Seaman J. Johnson
- Joseph Gallison
- Cameo
- Teru Shimada
- Maj. Samada
- George Shibata
- Capt. Shigetsu
- Phil Adams
- Crewman
- John Anderson
- Sailor
- Tom Anthony
- Crewman
- Nesdon Booth
- Chief Petty Officer
- Naaman Brown
- Cpl. Goroka
- Lysa D'Anjou
- French Guide
- Henry Faber
- (uncredited)
- Fuji
- Japanese Sergeant
- Clive Halliday
- Australian Major General
- Gavin W. Harper
- Seaman
- Dale Ishimoto
- Japanese Pilot
- Roy Jenson
- Shark Bait
- Lloyd Kino
- (uncredited)
- Hudson Shotwell
- Adm. Hathaway
- Sid Tomack
- Arthur
- Richard Torrence
- Horse
- Ron Veto
- Native
- Russ Whiteman
- American Colonel
- Mose Wilson
- Sailor
