Ruth Roman

Ann Hemple Nicholson

Sterling Hayden

John Emmett

Werner Klemperer

Dr. Frederick Simmons

Richard Gaines

Dean William Brant

Charles Davis

Edward Manning Kirkpatrick aka Kirk

Jeanne Cooper

Helen Bethke

Peter Hansen

Karl Plesser

Karl Ludwig Lindt

Dr. Reinhart Kissel

John Mitchum

Bud--Deputy Sheriff

John Frederick

Sheriff

Leonard Bremen

Collision Shop Owner (uncredited)

Sidney Clute

Mechanic (uncredited)

Ken Curtis

FBI Agent Jim Anderson (uncredited)

Harry Hines

Motel Owner (uncredited)

Tom McKee

Man from Sanitarium (uncredited)

Bert Stevens

Motorcycle Cop (uncredited)