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

Norman Hudis

Writer

Robert S. Baker

Producer

Desmond Davis

Camera Operator

Stanley Black

Original Music Composer

Henry Cass

Director

Monty Berman

Producer, Director of Photography

Paddy Manning O'Brine

Story

Norman G. Arnold

Art Direction

Anne Barker

Editor

Ronald Liles

Production Controller

Jimmy Evans

Makeup Artist

Percy Hermes

Assistant Director

George Burgess

Sound Recordist

Gladys Reeve

Continuity

Clive Midwinter

Production Manager

Barbara Sutton

Hairstylist