Richard Attenborough

Whitey Mullen

Pier Angeli

Teresa

John Gregson

Captain John 'Jack' Bennett

Eva Bartok

Maria

Eddie Constantine

Mark

Gunnar Möller

Dr. Strauss

Jean Anderson

Miss Shaw

Cec Linder

Willy

Clifford Evans

Petersen

Harold Kasket

Monk

Andrew Faulds

Sea Captain

Cyril Shaps

Louis

Tom Bowman

Alberto

Guy Green

Director

John G. Nasht

Producer

Robert Westerby

Screenplay

Patrick Filmer-Sankey

Producer

Diana Hawkins

Publicist

George Partleton

Makeup Artist

George Provis

Art Direction

Georges Auric

Original Music Composer

Wilkie Cooper

Director of Photography

Terence A. Clegg

Production Runner