Glenn Ford

Prof. Andrew 'Andy' Patterson

Rosemary Forsyth

Vivian Masters Patterson

Dean Jagger

Chad Harmon

Maurice Evans

Harry Masters

Will Geer

Mike Patterson

Eduard Franz

Dr. Konstantin Horvathy

William Conrad

Bart Harris

Robert Pine

Phillip Dunning

William Smithers

Dr. Jerry Fielder

Logan Field

Thaddeus Burns

Dabney Coleman

Agent Shepard

Scott Graham

Weber

James McEachin

Police Detective

Robert Clarke

Dr. Louis Bauier (uncredited)

Lisabeth Hush

Betty Fielder (uncredited)

Mark Roberts

DA Avery Hazelton (uncredited)