"On the night of November 13th, 1974, Ronald DeFeo Jr. took a high powered rifle and murdered his entire family as they slept. At his trial, DeFeo claimed that 'voices' in the house commanded him to kill. This is their story."
John Robinson
as Ronald 'Butch' DeFeo Jr.
Diane Franklin
as Louise DeFeo
Paul Ben-Victor
as Ronald DeFeo Sr.
Chelsea Ricketts
as Dawn DeFeo
Zane Austin
as Marc DeFeo
Noa Brenner
as Allison DeFeo
Kue Lawrence
as Jody DeFeo
Lainie Kazan
as Nona
Eddie Alfano
as Officer Aiello
Jon Mack
as Agent
Steve Trzaska
as Randy Buechler
Rebekah Graf
as Donna Benedettio
Burt Young
as Michael Brigante
Sarah French
as Dawn's Girlfriend
Sky Liam
as Steve Pelskie
Sazzy Lee Calhoun
First Assistant Director
Charles Arthur Berg
Line Producer
Eric Brenner
Producer
Daniel Farrands
Lucas Jarach
Jim Jacobsen
Executive Producer
Dana Kaproff
Music
Dan Riddle
Editor
Dean E. Fronk
Casting
Donald Paul Pemrick
Billy Jett
Production Design
Susan Doepner-Senac
Costume Design
Lindsey Petersen
Key Makeup Artist
Key Hair Stylist
Special Effects Makeup Artist
Writer
Director
Carlo Rinaldi
Director of Photography