On screen
Cast
23 credited performers
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
Character not listed
Don Keefer
Character not listed
James Westerfield
Character not listed
Artwork unavailable
Kendall Clark
Character not listed
George Dunn
Character not listed
Charles Horvath
Character not listed
Artwork unavailable
Jarl Victor
Character not listed
Arthur Space
Character not listed
Sam Gilman
Character not listed
Parley Baer
Character not listed
Hal Baylor
Character not listed
Clint Eastwood
Corpsman (uncredited)
David Janssen
uncredited