Edward G. Robinson

Steven 'Boley' Boleslavski

Glenn Ford

Mickey Donohue

Edgar Buchanan

Kansas Jackson

Marguerite Chapman

Mary Boleslavski

Regis Toomey

Lt. Cmdr. Clark

Warren Ashe

Lt. Bert Marton

Leo Gorcey

Seaman Sarecky

Edward Brophy

Engineer Casey

Eddy Waller

Marty, a riveter

Roger Clark

Chief Engineer

Curt Bois

Swab with large nose

Kenneth MacDonald

Admiral (Clark's CO)

Charles D. Brown

Doctor, finding Boley unfit for further sea duty

Cliff Clark

Commandant

Richard Loo

Japanese Submarine Commander

Benson Fong

Japanese Sonar Man

Lloyd Bridges

2nd Fireman (uncredited)

Tris Coffin

Doctor #1 (uncredited)

Bud Geary

2nd Ship Fitter (uncredited)

Eddie Hall

Austin (uncredited)

Charles McGraw

Assistant Chief Engineer (uncredited)

Milburn Stone

Radioman (uncredited)

Dennis Moore

Communications Officer (uncredited)

Larry Parks

Ens. Johnson (uncredited)

Shirley Patterson

Bigbee's Girl (uncredited)

Gene Rizzi

Survivor (uncredited)

Frank Beckford

Yeoman

Dean Benton

Moore

Lynton Brent

Doctor

Roy Brent

Sailor

Stanley Brown

Marine / Fireman

George Bruggeman

Cook

Alma Carroll

Sailor's Girl Friend

Eddy Chandler

Chief Gunner's Mate

Edmund Cobb

1st Workman

Eddie Coke

Storekeeper

Eleanor Counts

Sarecky's Girl

Roy Darmour

Pharmacist's Mate

Eddie Dew

Survivor

Lester Dorr

1st Ship Fitter

John Estes

Helmsman

Jerry Franks Jr.

Pharmacist's Mate / Bridge Talker

Jack Gardner

Sailor

Lloyd Hanson

Collins

Al Hill

Knife-Eating Sailor

David Holt

Sobbing Sailor

Bobby Jordan

Sobbing Sailor

David S. Horsley

Thomas

Mauritz Hugo

Survivor

Stephen Keyes

Seaman Guard

George Magrill

Marine

Don McGill

Survivor

Robert McKenzie

Justice of the Peace

David McKim

Signalman

Frank Melton

Doctor

John Merton

Chief Quartermaster

Gertrude Messinger

Girl

Bob Milton

J.V. Talker

Pat O'Malley

Postman

Paul Perry

Doctor

Don Peters

Helmsman

Neil Reagan

Lt. J.C. Randolph

Mickey Rentschler

J.V. Talker

Addison Richards

Ship Building Foreman

Ronald R. Rondell

Survivor

Clark Ross

Pharmacist's Mate

Virginia Sale

Kansas' Dance Partner

Charles Sherlock

Chief Machinist's Mate

George Sherwood

Workman

Mel Shubert

James

John Tyrrell

Marine

Dale Van Sickel

Sailor

Dorothy Vernon

Justice of the Peace's Wife

Pierre Watkin

Admiral

Frank Wayne

Pharmacist's Mate

Craig Woods

Bigbee

Billy Young

Storekeeper