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