On screen
Cast
10 credited performers
Robert Clarke
John Lawrence
Margaret Field
Enid Elliot
Raymond Bond
Prof. Elliot
William Schallert
Dr. Mears
Artwork unavailable
Roy Engel
Tommy the Constable
Artwork unavailable
David Ormont
Inspector Porter
Artwork unavailable
Gilbert Fallman
Dr. Robert Blane
Artwork unavailable
Pat Goldin
The Man from Planet X
Artwork unavailable
Tom Daly
Donal, a searcher
Artwork unavailable
June Jeffery
Wife of Missing Man