Obsazení
Marjorie Fielding
Michael's Mother
Hal Osmond
Agent Lawson
James Donald
Michael Heathley
Phyllis Calvert
Lydia Heathley
Noel Willman
Dr. Dennis Bord
Herbert Lom
Dr. Alex Leon
Patric Doonan
Brian Jackson
Marianne Stone
Maisie
Robert Beatty
Maj. Sam Seagram
Walter Fitzgerald
Sir Charles Craddock
Herbert Lomas
George Jackson
Cyril Chamberlain
Inspector Carter
Hartley Power
General Adams (uncredited)
Muriel Pavlow
Caroline Cartier
Maurice Denham
Prof. Carrington
Stanley Maxted
Prof. Adams
Philip Ray
Sentry (uncredited)
Johnnie Schofield
Jim Barnes (uncredited)