Harry D'Amour
Philip Swann
Dorothea Swann
Valentin
Nix
Butterfield
Caspar Quaid
Jennifer Desiderio
Vinovich
Young Dorothea
Young Butterfield
Loomis
Ray Miller
Maureen Pimm
Clemenzia
Detective Edison
Forensic Photographer
Tapert
Dr. Toffler
Snakeman
Exorcised Boy
Hotel Bellboy
Stage Technician
Walter Wilder
Billy Who
Nurse
Dancer
Dancer
Dancer
Dancer
Swann Audience Member (uncredited)
Bar patron (uncredited)
Cult Member (uncredited)
Lead Female Cultist
Director
Director of Photography
Editor
Production Design
Original Music Composer
Producer
Producer
Casting
Costume Design
Associate Producer
Writer
Stunts
Short Story
Executive Producer
Executive Producer
Set Decoration
Art Direction
Art Direction
Special Effects Makeup Artist
Makeup Artist
Special Effects Makeup Artist
Special Effects Makeup Artist
Special Effects Makeup Artist
Special Effects Makeup Artist
Special Effects Makeup Artist
Special Effects Makeup Artist
Special Effects Makeup Artist
Special Effects Makeup Artist
Sound
Visual Effects
Visual Effects
Visual Effects