Bill Travers

Joe Ryan

William Sylvester

Sam Slade

Vincent Winter

Sean

Christopher Rhodes

McCartin

Joseph O'Conor

Prof. Hendricks

Bruce Seton

Prof. Flaherty

Martin Benson

Dorkin

Maurice Kaufmann

Radio Reporter

Basil Dignam

Admiral Brooks

Barry Keegan

Mate

Tommy Duggan

First Naval Officer

Howard Lang

First Colonel

Dervis Ward

Bosun

Mick Dillon

Gorgo

Nigel Green

Bulletin Announcer (Uncredited)

Eugène Lourié

Director

Robert L. Richards

Screenplay

Daniel James

Screenstory

Robert L. Richards

Screenstory

Herman King

Producer

Maurice King

Executive Producer

Stella Morris

Makeup Artist

James Leicester

Associate Producer

Wilfred Eades

Producer

Frank King

Executive Producer

Eric Boyd-Perkins

Editor

Angelo Francesco Lavagnino

Original Music Composer

Daniel James

Screenplay

Tom Howard

Visual Effects

Freddie Young

Director of Photography

Elliot Scott

Art Direction

Roy Gough

Still Photographer