Sterling Hayden
John Emmett
Karl Ludwig Lindt
Dr. Reinhart Kissel
Werner Klemperer
Dr. Frederick Simmons
Ruth Roman
Ann Hemple Nicholson
John Mitchum
Bud--Deputy Sheriff
Richard Gaines
Dean William Brant
Ken Curtis
FBI Agent Jim Anderson (uncredited)
Peter Hansen
Karl Plesser
Jeanne Cooper
Helen Bethke
Leonard Bremen
Collision Shop Owner (uncredited)
John Frederick
Sheriff
Charles Davis
Edward Manning Kirkpatrick aka Kirk
Harry Hines
Motel Owner (uncredited)
Bert Stevens
Motorcycle Cop (uncredited)