Lieut. Gregg Masterman

Robert Taylor

Rear Admiral Stephen Thomas

Charles Laughton

Lieut. Cmdr. Martin Roberts

Brian Donlevy

Chief Yeoman Henry Johnson

Walter Brennan

Chief Boatswain's Mate Jenks

Chill Wills

Audrey Carr

Marilyn Maxwell

Cmdr. Stone M.C

Henry O'Neill

Mary Collins

Marta Linden

Capt. Ludlow

Douglass Dumbrille

Ensign Lindsay

Richard Quine

Flag Lt. Dudley

William Tannen

Lieut. (jg) Royce

Dick Simmons

Ensign Martin

Douglas Fowley

Lieut. Tim Ryan

Tim Ryan

Lt. Royce

Richard Simmons

Pharmacist's Mate "Doc" Miller

Byron Foulger

Carpenter's Mate "Chips"

Hobart Cavanaugh

Susan Garrison

Inez Cooper

Chief Quartermaster Rankin

Ben Welden

Chief Signalman

Harry Fleischmann

Sen. Masterman (uncredited)

Douglas Wood

Jason (uncredited)

Spec O'Donnell

Commander (uncredited)

Theodore von Eltz

Expectant Mother (uncredited)

Elizabeth Russell

Lookout (uncredited)

Hal Le Sueur

Hank Nels (uncredited)

Robert Kent

Senator at Party (uncredited)

Sam Harris

Marine Messenger (uncredited)

William Roberts

Ship Officer (uncredited)

Frank McLure

Talker (uncredited)

Jim Davis

Talker (uncredited)

Wally Cassell

Talker (uncredited)

James Millican

Sailor (uncredited)

Harry 'Snub' Pollard

Sailor (uncredited)

Frank Hagney

Sailor (uncredited)

Duke York

Sailor (uncredited)

Billy Bletcher

Sailor (uncredited)

Harry Wilson