罗纳德·威尔逊·里根

Ronald Wilson Reagan

饰：Cmdr. Casey Abbott (Captain, USS Starfish)

南希·里根

Nancy Davis

饰：Nurse Lt. Helen Blair

阿瑟·弗兰兹

Arthur Franz

饰：Lt. Cmdr. Don Landon (XO, USS Starfish)

罗伯特·亚瑟

Robert Arthur

饰：Freddy Warren

威廉·莱斯利

William Leslie

饰：Lt. Paul Prentice

威廉·菲利普斯

William 'Bill' Phillips

饰：Carroll (as William Phillips)

哈里·劳特

Harry Lauter

饰：Lt. (j.g.) Wes Barton

Michael Garth

饰：Lt. Charlie (USS Starfish)

乔·托克尔

Joe Turkel

饰：Chick (Torpedoman, USS Starfish) (as Joseph Turkel)

唐·基弗

Don Keefer

饰：Jug

Max Showalter

饰：Crewman,diver

弗兰克·蔡斯

Frank Chase

饰：Sailor Holding Knife (uncredited)

James Dobson

饰：Bob Altman (uncredited)

托马斯·布朗·亨利

Thomas Browne Henry

饰：Board of Inquiry Chief (uncredited)

塞尔默杰克逊

Selmer Jackson

饰：Fleet Adm. Chester W. Nimitz (uncredited)

Maurice Manson

饰：Vice-Adm. Charles A. Lockwood (uncredited)

罗伯特·尼克尔斯

Robert Nichols

饰：Ens. Bob Altman (sonar officer) (uncredited)

切斯特·尼米兹

Chester W. Nimitz

饰：Himself (uncredited)

Vinnie De Carlo

饰：Sailor that dies on deck of sub in Cmdr Abbott's arms (uncredite

南希·特拉维斯

Nancy Travis