"A one-handed madman (he lost the hand while escaping a hanging) uses various detachable devices as murder weapons to gain revenge on those he believes have wronged him."
Patrick O'Neal
as Jason Cravatte
Cesare Danova
as Anthony Draco
Wilfrid Hyde-White
as Harold Blount
Laura Devon
as Marie Champlain
Patrice Wymore
as Vivian (Delano's hostess)
Suzy Parker
as Barbara Dixon
José René Ruiz
as Senor Pepe De Reyes
Philip Bourneuf
as Insp. Matthew Strudwick
Jeanette Nolan
as Mrs. Ewing Perryman
Marie Windsor
as Madame Corona
Wayne Rogers
as Police Sgt. Jim Albertson
Vinton Hayworth
as Judge Walter Randolph
Richard O'Brien
as Dr. Romulus Cobb
Inger Stratton
as Gloria
Berry Kroeger
as Chun Sing
Charles Seel
as Rev. Dr. Hopewell
Ayllene Gibbons
as Victoria the Barmaid
Barbro Hedström
as Florabell (uncredited)
Tony Curtis
as Mr. Julian (uncredited)
William Conrad
as Narrator (voice) (uncredited)
Annazette Chase
as Prudence (uncredited)
Al McGranary
as Senator Dixon (uncredited)
Jean Carson
as Girl on Street (uncredited)
Robert Goodwin
as Oliver (uncredited)
Fredd Wayne
as Charlie Benton (uncredited)
Hy Averback
Director
William L. Kuehl
Set Decoration
Art Loel
Art Direction
William Lava
Original Music Composer
M.A. Merrick
Sound
Producer
Jean Burt Reilly
Hairstylist
James Barnett
Associate Producer
David Wages
Editor
Gordon Bau
Makeup Artist
Sherry Shourds
Unit Manager
Stephen Kandel
Screenplay
Ray Russell
Story
Buddy Van Horn
Stunts
Richard H. Kline
Director of Photography