Cmdr. Casey Abbott (Captain, USS Starfish)

Ronald Reagan

Acting

Nurse Lt. Helen Blair

Nancy Reagan

Acting

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

Arthur Franz

Acting

Freddy Warren

Robert Arthur

Acting

Lt. Paul Prentice

William Leslie

Acting

Carroll (as William Phillips)

William Phillips

Acting

Lt. (j.g.) Wes Barton

Harry Lauter

Acting

Bill aka Lt. Charlie

Michael Garth

Acting

Chick (as Joseph Turkel)

Joe Turkel

Acting

Jug

Don Keefer

Acting

Himself (in prologue) (uncredited)

Chester W. Nimitz

Acting