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