Paul Michael Glaser

Harry Houdini (Erich Weiss)

Sally Struthers

Bess Houdini

Ruth Gordon

Cecilia Weiss

Vivian Vance

Minnie (Nurse)

Adrienne Barbeau

Daisy White

Bill Bixby

Reverend Ford

Jack Carter

Theo Weiss

Peter Cushing

Conan Doyle

Nina Foch

Reverend Le Veyne

Wilfrid Hyde-White

Superintendent Melville

Geoffrey Lewis

Dr. Crandon

Maureen O'Sullivan

Lady Conan Doyle

Clive Revill

Dundas Slater

Barbara Rhoades

Margery Crandon

Marilyn Brodnick

Dorothy Weiss

Patrick Culliton

Franz Kukla

Richard Kennedy

Pub Policeman

Karin Collison

Barmaid