Helmut Dantine
The Stranger
Derek Bond
Arthur Walker
Cyril Luckham
Dr. Meinard
Willoughby Gray
Tom Harding
Marigold Russell
Gretchen Harding
Arthur Young
ScientistKenneth Edwards
Charles DixonDavid Garth
First Police Officer
Stanley Van Beers
General
Nigel Green
Second Police Officer
