Steven 'Boley' Boleslavski
Mickey Donohue
Kansas Jackson
Mary Boleslavski
Lt. Cmdr. Clark
Lt. Bert Marton
Seaman Sarecky
Engineer Casey
Marty, a riveter
Chief Engineer
Swab with large nose
Admiral (Clark's CO)
Doctor, finding Boley unfit for further sea duty
Commandant
Japanese Submarine Commander
Japanese Sonar Man
2nd Fireman (uncredited)
Doctor #1 (uncredited)
2nd Ship Fitter (uncredited)
Austin (uncredited)
Assistant Chief Engineer (uncredited)
Radioman (uncredited)
Communications Officer (uncredited)
Ens. Johnson (uncredited)
Bigbee's Girl (uncredited)
Survivor (uncredited)
Yeoman
Moore
Doctor
Sailor
Marine / Fireman
Cook
Sailor's Girl Friend
Chief Gunner's Mate
1st Workman
Storekeeper
Sarecky's Girl
Pharmacist's Mate
Survivor
1st Ship Fitter
Helmsman
Pharmacist's Mate / Bridge Talker
Sailor
Collins
Knife-Eating Sailor
Sobbing Sailor
Sobbing Sailor
Thomas
Survivor
Seaman Guard
Marine
Survivor
Justice of the Peace
Signalman
Doctor
Chief Quartermaster
Girl
J.V. Talker
Postman
Doctor
Helmsman
Lt. J.C. Randolph
J.V. Talker
Ship Building Foreman
Survivor
Pharmacist's Mate
Kansas' Dance Partner
Chief Machinist's Mate
Workman
James
Marine
Sailor
Justice of the Peace's Wife
Admiral
Pharmacist's Mate
Bigbee
Storekeeper