Richard Egan
David Sheppard
Richard Egan
David Sheppard
Constance Dowling
Joanna Merritt
Herbert Marshall
Dr. Van Ness
John Wengraf
Dr. Zeitman
Philip Van Zandt
Dr. Pierre Elzevir
Valerie Vernon
Mme. Elzevir
Byron Kane
Dr. Carter
Stephen Roberts
Maj. Howard
Michael Fox
Dr. Hubertus
Aline Towne
Dr. Kirby
Marian Richman
Helen
Jean Dean
Marna
William Schallert
Engle
David Alpert
Dr. Peter Burden
Tom Daly
Senator
Herbert L. Strock
Director
Tom Taggart
Screenplay
William Ferrari
Art Direction
Richard G. Taylor
Additional Dialogue
Herbert L. Strock
Editor
Victor A. Gangelin
Set Decoration
Lothrop B. Worth
Director of Photography
Ivan Tors
Story
Ivan Tors
Producer
Harry Sukman
Original Music Composer