Ernest Borgnine

as Lieutenant Commander Quinton McHale

Tim Conway

as Ensign Charles Beaumont Parker

Joe Flynn

as Captain Wallace "Wally" Burton Binghamton U.S.N.R.

Gary Vinson

as Quartermaster George "Christy" Christopher

John Wright

as Radioman Willy Moss

Billy Sands

as Motor Machinist Mate Harrison James "Tinker" Bell

Edson Stroll

as Gunner's Mate Virgil Edwards

Carl Ballantine

as Torpedoman's Mate Lester Gruber

Yoshio Yoda

as Seaman 3rd Class Fuji Kobiaji

Bob Hastings

as Lieutenant Elroy Carpenter