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