John Agar

Character: Alex Marsh

Paula Raymond

Character: Carol Wilson

Stephen Dunne

Character: Tom Holland

Roy Gordon

Character: Dr. Frederick Ramsey

John A. Alonzo

Character: Carlos, lab assistant

Jack Younger

Character: Mike The Mailman

Joe Besser

Character: Service station attendant

Butch Patrick

Character: Davey, little boy on beach

Norman Burton

Character: Chief Homicide Investigator

Fred Krone

Character: Cab Driver

Kevin Enright

Character: Police Photographer

Jack Donner

Character: Cop

Chuck Niles

Character: Reporter

Ruth Terry

Character: Woman with Packages

Bob Whitney

Character: Cop