Joe Ryan
Bill Travers
Sam Slade
William Sylvester
First Naval Officer
Tommy Duggan
First Colonel
Howard Lang
Bosun
Dervis Ward
Gorgo
Mick Dillon
Bulletin Announcer (Uncredited)
Nigel Green
Sean
Vincent Winter
McCartin
Christopher Rhodes
Prof. Hendricks
Joseph O'Conor
Prof. Flaherty
Bruce Seton
Dorkin
Martin Benson
Radio Reporter
Maurice Kaufmann
Admiral Brooks
Basil Dignam
Mate
Barry Keegan
Director of Photography
Freddie Young
Original Music Composer
Angelo Francesco Lavagnino
Director
Eugène Lourié
Screenstory
Robert L. Richards
Daniel James
Screenplay
Producer
Wilfred Eades
Herman King
Executive Producer
Frank King
Maurice King
Associate Producer
James Leicester
Editor
Eric Boyd-Perkins
Makeup Artist
Stella Morris
Visual Effects
Tom Howard
Art Direction
Elliot Scott
Still Photographer
Roy Gough