Carla Balenda
Janet Keller
Acting
Elliott Reid
Matt Corbin
Acting
Edgar Barrier
Dr. Edward Keller
Acting
Raymond Burr
Steve Loomis
Acting
Otto Waldis
Dr. Wilhelm Bucholtz
Acting
Michael Steele
Chick
Acting
Lurene Tuttle
Molly Loomis
Acting
Peter Brocco
Nate Garr
Acting
Lewis Martin
Peterson
Acting
Frank Darien
Luther Adams
Acting
Olive Carey
Mabel Turner
Acting
George Barrows
Federal Agent (uncredited)
Acting
Stanley Blystone
Guard on Pier (uncredited)
Acting
Eddie Borden
Medical Experiment Patient (uncredited)
Acting
George Bruggeman
Federal Agent (uncredited)
Acting
William Challee
Guard (uncredited)
Acting
George Chandler
Jed (uncredited)
Acting
G. Pat Collins
Nelson - Gate Guard (uncredited)
Acting
Tom Daly
Germ Experiment Victim (uncredited)
Acting
Don Dillaway
FBI Agent McIntyre (uncredited)
Acting
Art Dupuis
Speedboat Pilot (uncredited)
Acting
Douglas Evans
Carstairs (uncredited)
Acting
Elizabeth Flournoy
Secretary (uncredited)
Acting
Robert Foulk
Guard (uncredited)
Acting
Gregory Gaye
Sweitart (uncredited)
Acting
Milton Kibbee
Produce Company Proprietor (uncredited)
Acting
Mathew McCue
Medical Experiment Patient (uncredited)
Acting
Lee Miller
Federal Agent (uncredited)
Acting
Billy Nelson
Ed (uncredited)
Acting
Jamesson Shade
Sheriff (uncredited)
Acting
Brick Sullivan
Federal Agent (uncredited)
Acting
Bob Thom
Federal Agent (uncredited)
Acting
Frank Wilcox
Bradford (uncredited)
Acting
William Yetter Sr.
German Pier Guard (uncredited)
Acting