Harry Houdini
Paul Michael Glaser
Bess Houdini
Sally Struthers
Dr. Crandon
Geoffrey Lewis
Lady Conan Doyle
Maureen O'Sullivan
Dundas Slater
Clive Revill
Margery Crandon
Barbara Rhoades
Dorothy Weiss
Marilyn Brodnick
Franz Kukla
Patrick Culliton
Pub Policeman
Richard Kennedy
Barmaid
Karin Collison
Hotel Maid
Jan Stratton
Jerome Thor
Cecilia Weiss
Ruth Gordon
Minnie
Vivian Vance
Daisy White
Adrienne Barbeau
Rev. Arthur Ford
Bill Bixby
Theo Weiss
Jack Carter
Sir Arthur Conan Doyle
Peter Cushing
Reverend Le Veyne
Nina Foch
Superintendent Melville
Wilfrid Hyde-White
Original Music Composer
Peter Matz
Director
Melville Shavelson
Writer
Peter Benchley
Director of Photography
Archie R. Dalzell
Makeup Artist
Thomas Tuttle
Set Decoration
Bob Signorelli
Production Design
Tracy Bousman
Emile LaVigne
Assistant Editor
Bud Klutchman
Sound Editor
Jerry Rosenthal
Editor
John Woodcock
Hairstylist
Naomi Cavin