Suspect
Cast
Basil Dignam
Dr Childs
Geoffrey Bayldon
Rosson
Ian Wilson
Pin Table Man
Tony Britton
Dr. Robert Marriott
Virginia Maskell
Dr. Lucy Byrne
Sam Kydd
Slater
Brian Oulton
Director
Murray Melvin
Teddy Boy
Ian Bannen
Alan Andrews
Kenneth Griffith
Dr Shole
Peter Cushing
Professor Sewell
Thorley Walters
Special Agent Prince
Andre Charisse
Heller
Margaret Lacey
Prince's Secretary
John Payne
Iverson
Donald Pleasence
Parsons, alias Bill Brown
Spike Milligan
Arthur, lab orderly
Raymond Huntley
Sir George Gatting the Minister of Defense
Anthony Booth
Parkin