Characters played by Jack Lemmon
Lt. Rip Crandall
Characters played by Ricky Nelson
Ens. Tommy J. Hanson
Characters played by John Lund
Lt. Cmdr. Wilbur F. Vandewater
Characters played by Chips Rafferty
Patterson
Characters played by Tom Tully
Capt. McClung
Characters played by Joby Baker
Josh Davidson
Characters played by Warren Berlinger
Radioman 2nd Class A.J. 'Sparks' Sparks
Characters played by Patricia Driscoll
Maggie
Characters played by Mike Kellin
Chief Mate Jack MacCarthy
Characters played by Richard Anderson
Lt. Dennis M. Foster
Characters played by Alvy Moore
Seaman J. Johnson
Characters played by Joseph Gallison
'Cameo'
Characters played by Teru Shimada
Maj. Samada
Characters played by George Shibata
Capt. Shigetsu
Characters played by Phil Adams
Crewman
Characters played by John Anderson
Sailor
Characters played by Tom Anthony
Crewman
Characters played by Nesdon Booth
Chief Petty Officer
Characters played by Naaman Brown
Cpl. Goroka
Characters played by Lysa D'Anjou
French guide
Characters played by Henry Faber
(uncredited)
Characters played by Fuji
Japanese Sergeant
Characters played by Clive Halliday
Australian Major General
Characters played by Gavin W. Harper
Seaman
Characters played by Dale Ishimoto
Japanese Pilot
Characters played by Roy Jenson
Shark Bait - USS Echo Crewman
Characters played by Lloyd Kino
(uncredited)
Characters played by Richard Quine
Narrator
Characters played by Hudson Shotwell
Adm. Hathaway
Characters played by Sid Tomack
Arthur
Bartender at Kangaroo Club
Characters played by Richard Torrence
Horse
Characters played by Ron Veto
Native
Characters played by Russ Whiteman
American Colonel
Characters played by Mose Wilson
Sailor