Characters played by Ruth Roman
Ann Nicholson
Characters played by Sterling Hayden
John Emmett
Characters played by Werner Klemperer
Dr. Simmons
Characters played by Richard Gaines
Dean Brant
Characters played by Charles Davis
Kirk
Characters played by Jeanne Cooper
Helen Bethke
Characters played by Peter Hansen
Karl Plesser
Characters played by Karl Ludwig Lindt
Kissel
Characters played by John Mitchum
Deputy
Characters played by John Frederick
Sheriff
Characters played by Leonard Bremen
Collision Shop Owner
Characters played by Sidney Clute
Mechanic
Characters played by Ken Curtis
FBI Agent Jim Anderson
Characters played by Harry Hines
Motel Owner
Characters played by Tom McKee
Man from Sanitarium
Characters played by Bert Stevens
Motorcycle Cop