Cast
- Terry Moore as Harper Davis
- Jan Murray as Rudolph Koffman
- Jan Murray as Hans Leitel
- Sue Ane Langdon as Ingrid
- Paul Mantee as Dick Dagger
- Eileen O'Neill as Erica
- Maureen Arthur as Joy
- Leonard Stone as Karl Rainer
- Richard Kiel as Otto
- Mimi Dillard as Girl in Auto
- Martha Luttrell as Ingrid's Girl
Crew
- Richard Rush · Director
- Leighton J. Peatman · Writer
- Robert S. Weekley · Writer
- Lew Horwitz · Producer
- Steve Allen · Composer
- László Kovács · Cinematographer
- Tom Boutross · Editor
- Len Miller · Editor