Jeff Chandler

Capt. Jebediah S. Hawks

George Nader

Lieut. Dave MacDougall

Lex Barker

Commander Quigley

Julie Adams

Nadine MacDougall

Keith Andes

Doctor Bell

Richard Boone

Lieut. Fraser

William Reynolds

Ensign Kruger

Charles McGraw

Lieut. Mike O'Bannion

Jock Mahoney

Alvick

Frank Faylen

Chief Phillip P. 'Pappy' Moran

John McIntire

Jock Mahoney

Don Keefer

James Westerfield

George Dunn

Arthur Space

Sam Gilman

Parley Baer

Hal Baylor

Clint Eastwood

Corpsman (uncredited)

David Janssen

uncredited