Cast
Michael Hordern
Dr. Davidson
John Glyn-Jones
Dr. Wilmot
Charles Gray
Leo
John Phillips
Professor Stephens
Jeremy Lloyd
Jaguar Driver
Kenneth More
William Blood
Bernard Horsfall
Rex
Bruce Boa
Roy
Noel Purcell
Prosecutor
Ed Devereaux
Storekeeper
Edward Burnham
Test Chamber Scientist
Shirley Anne Field
Polly
Norman Bird
Herbert