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