Breakaway
Tom Conway
Tom Martin
Michael Balfour
Barney
Honor Blackman
Paula Grant / Paula Jackson
Brian Worth
Johnny Matlock
Bruce Seton
Webb
Freddie Mills
Pat
Alexander Gauge
MacAllister
John Horsley
Michael Matlock
Paddy Webster
Diane Grant
John Colicos
First Kidnapper
Larry Taylor
Second Kidnapper
Arthur Lowe
Mitchell
Frederick Schrecker
Professor Dohlmann
Marianne Walla
Miss Freda Dohlmann
Russell Westwood
Berlin Man
Percy Hermes
Assistant Director
Robert S. Baker
Producer
Monty Berman
Producer
Gladys Reeve
Continuity
Clive Midwinter
Production Manager
George Burgess
Sound Recordist
Barbara Sutton
Hairstylist
Jimmy Evans
Makeup Artist
Norman Hudis
Writer
Anne Barker
Editor
Paddy Manning O'Brine
Story
Norman G. Arnold
Art Direction
Henry Cass
Director
Stanley Black
Original Music Composer
Desmond Davis
Camera Operator
Monty Berman
Director of Photography
Ronald Liles
Production Controller