Steven 'Boley' Boleslavski

Edward Robinson

Steve Boleslavski

Edward G. Robinson

Mickey Donohue

Glenn Ford

Mary Boleslavski

Marguerite Chapman

Kansas Jackson

Edgar Buchanan

Lt. Cmdr. Clark

Regis Toomey

Lt. Bert Marton

Warren Ashe

Seaman Sarecky

Leo Gorcey

Engineer Casey

Edward Brophy

Marty, a riveter

Eddie Waller

Marty, a riveter

Eddy Waller

Chief Engineer

Roger Clark

Swab with large nose

Curt Bois

Doctor, finding Boley unfit for further sea duty

Charles D. Brown

Admiral (Clark's CO)

Kenneth MacDonald

Commandant

Cliff Clark

Japanese Submarine Commander

Richard Loo

Japanese Sonar Man

Benson Fong

2nd Fireman (uncredited)

Lloyd Bridges

Doctor #1

Tristam Coffin

2nd Ship Fitter (uncredited)

Bud Geary

Doctor #1 (uncredited)

Tristram Coffin

Yeoman

Frank Beckford

Moore

Dean Benton

Doctor

Lynton Brent

Assistant Chief Engineer (uncredited)

Charles McGraw

Austin (uncredited)

Eddie Hall

Radioman

Milburn Stone

Sailor

Roy Brent

Marine / Fireman

Stanley Brown

Communications Officer (uncredited)

Dennis Moore

Cook

George Bruggeman

Ens. Johnson

Larry Parks

Bigbee's Girl (uncredited)

Shirley Patterson

Sailor's Girl Friend

Alma Carroll

Chief Gunner's Mate

Eddy Chandler

Survivor (uncredited)

Gene Rizzi

1st Workman

Edmund Cobb

Storekeeper

Eddie Coke

Sarecky's Girl

Eleanor Counts

Pharmacist's Mate

Roy Darmour

Survivor

Eddie Dew

First Ship Fitter

Lester Dorr

Helmsman

John Estes

Chief Gunner's Mate

Eddie Chandler

Pharmacist's Mate / Bridge Talker

Jerry Franks Jr.

1st Workman

Edmond Cobb

Sailor

Jack Gardner

Collins

Lloyd Hanson

Knife-Eating Sailor

Al Hill

Sobbing Sailor

David Holt

Sobbing Sailor

Bobby Jordan

Thomas

David S. Horsley

Survivor

Mauritz Hugo

Seaman Guard

Stephen Keyes

Marine

George Magrill

Survivor

Don McGill

Justice of the Peace

Robert McKenzie

Signalman

David McKim

Doctor

Frank Melton

Chief Quartermaster

John Merton

Girl

Gertrude Messinger

J.V. Talker

Bob Milton

Postman

Pat O'Malley

Doctor

Paul Perry

Helmsman

Don Peters

Lt. J.C. Randolph

Neil Reagan

J.V. Talker

Mickey Rentschler

Ship Building Foreman

Addison Richards

Survivor

Ronald R. Rondell

Pharmacist's Mate

Clark Ross

Kansas' Dance Partner

Virginia Sale

Chief Machinist's Mate

Charles Sherlock

Workman

George Sherwood

James

Mel Shubert

Marine

John Tyrrell

Sailor

Dale Van Sickel

Justice of the Peace's Wife

Dorothy Vernon

Admiral

Pierre Watkin

Pharmacist's Mate

Frank Wayne

Bigbee

Craig Woods

Storekeeper

Billy Young