Lt. Rip Crandall

Jack Lemmon

Ens. Tommy J. Hanson

Ricky Nelson

Lt. Cmdr. Wilbur F. Vandewater

John Lund

Boomer McKye

Chips Rafferty

Capt. McClung

Tom Tully

Josh Davidson

Joby Baker

Radioman 2nd Class A.J. "Sparks" Sparks

Warren Berlinger

Maggie

Patricia Driscoll

Chief Mate Jack MacCarthy

Mike Kellin

Lt. Dennis M. Foster

Richard Anderson

Seaman J. Johnson

Alvy Moore

"Cameo"

Joe Gallison

Maj. Samada

Teru Shimada

Capt. Shigetsu

George Shibata

Horse (uncredited)

Richard Torrence

Crewman (uncredited)

Phil Adams

Corporal Goroka (uncredited)

Naaman Brown

Sailor (uncredited)

John Anderson

Crewman (uncredited)

Tom Anthony

Chief Petty Officer (uncredited)

Nesdon Booth

Narrator (voice) (uncredited)

Richard Quine

French guide (uncredited)

Lysa D'Anjou

Australian Major General (uncredited)

Clive Halliday

Henry Faber

Japanese Pilot (uncredited)

Dale Ishimoto

Shark Bait - USS Echo Crewman

Roy Jenson

Admiral Hathaway (uncredited)

Hudson Shotwell

Arthur (uncredited)

Sid Tomack

Native (uncredited)

Ron Veto

American Colonel (uncredited)

Russ Whiteman