Ethan Hawke

Character: Bruce Kenner

Emma Watson

Character: Angela Gray

David Thewlis

Character: Professor Kenneth Raines

Lothaire Bluteau

Character: Reverend Beaumont

Dale Dickey

Character: Rose Gray

David Dencik

Character: John Gray

Devon Bostick

Character: Roy Gray

Aaron Ashmore

Character: George Nesbitt

Peter MacNeill

Character: Police Chief Cleveland

Adam Butcher

Character: Brody

Jacob Neayem

Character: Charlie Klemme

Aaron Abrams

Character: Farrell

Catherine Disher

Character: Kate

Danielle Bourgon

Character: Secretary at Police Station

Julian Richings

Character: Tom

Kristian Bruun

Character: Andrew

Luke Marty

Character: Officer

Wendy Lyon

Character: Norma

Kaitlin Kocsis

Character: Teenage Girl

Samantha Tenus

Character: Teenage Girl

J.C. Kenny

Character: TV News Anchor

Maura Grierson

Character: TV Reporter

Patrick Garrow

Character: TV Presenter

Janet Porter

Character: S. Cooper

Pamela MacDonald

Character: Woman with Grocery Cart

Lenno Britos

Character: Driver

Steve Whistance-Smith

Character: Passenger (as Steven John Whistance Smith)

Deborah Grover

Character: Old Woman

Arlene Frattini

Character: Naked Old Woman

Emily Haughton

Character: Ms. Gray (Still)

Jessica Field

Character: Angela at 10 years (Still)

Adam Gullusci

Character: Roy at 14 years (Still)

Adrian Griffin

Character: Doctor

Kirk Gordon

Character: Prison Guard

Heidi Malley

Character: Victim

Kate Stephey

Character: Young Satanist Woman

Audrey Potter

Character: Baby

Olivia Potter

Character: Baby

Lauren Jenkins

Character: Baby

Charley Jenkins

Character: Baby

Nick Longo

Character: Satanist

Lisa Horvath

Character: Satanist

Goran Stjepanovic

Character: Satanist

Carrie Eklund

Character: Satanist

Heather Lapine

Character: Satanist

James Preston Rogers

Character: Satanist

Stephen Hughes

Character: TV Voice Over (voice)

Vanessa Spencer

Character: Satanist (uncredited)

Noah Segura

Character: Reverend Simmons (uncredited)

Attila Sebesy

Character: Cult Member (uncredited)

Mackenzie Kerfoot

Character: Praying Girl (uncredited)

Alli McLaren

Character: Girl (uncredited)