Distribution
Glenn Ford
Prof. Andrew 'Andy' Patterson
Will Geer
Mike Patterson
Eduard Franz
Dr. Konstantin Horvathy
William Conrad
Bart Harris
Lisabeth Hush
Betty Fielder (uncredited)
Rosemary Forsyth
Vivian Masters Patterson
William Smithers
Dr. Jerry Fielder
James McEachin
Police Detective
Robert Clarke
Dr. Louis Bauier (uncredited)
Maurice Evans
Harry Masters
Robert Pine
Phillip Dunning
Dean Jagger
Chad Harmon
Dabney Coleman
Agent Shepard
Mark Roberts
DA Avery Hazelton (uncredited)