Edward G. Robinson
Steven 'Boley' Boleslavski
Edgar Buchanan
Kansas Jackson
Marguerite Chapman
Mary Boleslavski
Regis Toomey
Lt. Cmdr. Clark
Warren Ashe
Lt. Bert Marton
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
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)
Stanley Brown
Marine / Fireman
Alma Carroll
Sailor's Girl Friend
Eddy Chandler
Chief Gunner's Mate
Eleanor Counts
Sarecky's Girl
Roy Darmour
Pharmacist's Mate
Lester Dorr
1st Ship Fitter
Jerry Franks Jr.
Pharmacist's Mate / Bridge Talker
Al Hill
Knife-Eating Sailor
Bobby Jordan
Sobbing Sailor
Stephen Keyes
Seaman Guard
Robert McKenzie
Justice of the Peace
John Merton
Chief Quartermaster
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
Dorothy Vernon
Justice of the Peace's Wife
Frank Wayne
Pharmacist's Mate
