Kevin Conway

The Control Voice (voice) (uncredited)

David Lovgren

Evan

Jeremy Sisto

Tom

Rachel Ticotin

Theodora 'Teddi' Madden

Sherilyn Fenn

Nora Griffiths / Nora's Clone

Kandyse McClure

Brianna Lake

Colin Ferguson

David

Dennis Haysbert

Joshua Finch

Katharine Isabelle

Tammy Sinclair

Shawn Ashmore

Morris Shotwell

Enrico Colantoni

Michael Burr

Zack Ward

Link

Tom Arnold

Jerry Miller

Jason Gedrick

Captain Kelvin Parkhurst

Patrick McKenna

Dr. Seigel

Chris William Martin

Gavin

Meghan Ory

Danielle Hobson

Robert Duncan McNeill

Commander Ellis Ward

Michael Rooker

Colonel Beckett

Dean Marshall

Captain William Hinman

Jessica Amlee

Young Lorelle

Noel Fisher

Brae

Nora Dunn

Laura Sinclair

Jamie Luner

Dr. Candace Maguire

Kerr Smith

Zach Burnham

Zachery Ty Bryan

Ray

Tanya Allen

Amy Barrett

Aaron Douglas

Kevin Lockwood

P.J. Prinsloo

Eric

Brad Rowe

Daniel

Glynis Davies

Dr. Baker

Paul Popowich

Tom Palmer

John Wesley Shipp

Coach Peter Shotwell

Dina Meyer

Dr. Rachel Harris

Holly Ferguson

Heather

Anthony Harrison

Detective Saunders

Brian Arnold

Newscaster

Jesse Moss

Jason Stewart

Alex Diakun

Nicholas Prentice

Catherine Mary Stewart

Brooke Miller

Gerard Plunkett

Gideon

Kimberley Warnat

Candace Miller

Giacomo Baessato

Russ Miller

Alf Humphreys

Dennis

Beverley Elliott

Holly

Michael Daingerfield

Delivery Man

Jordan Weller

Zack

Graham Wardle

Man

Brent Sheppard

Man on TV

Jade Pawluk

Clay

Clay St. Thomas

Host on TV

Laurie Murdoch

Quisling

Gillian Barber

General

David Cubitt

Colonel Faber

Patrick McManus

Dr. Mandel

Myfanwy Meilen

Beckett's Wife

Karina Carreck

Nurse

Aaron Joseph

Basketball Kid

Kyra Azzopardi

Catherine

Bruce Campbell

Coffee Guy

Michelle Beaudoin

Beth

Nick Mancuso

Father

Michael Eklund

Jacob

Jeremy Van der Driesen

Polk

Rei Hance

Claire Linkwood

Erich Anderson

Dr. Deanston

Ocean Hellman

Fern

Cheryl Wilson

Nurse Rebecca

Ian Robison

Craig

Elizabeth McLaughlin

Donna

William MacDonald

FBI Special Agent Grant

G. Patrick Currie

Ben

Ronin Wong

Dr. Chan

Enid-Raye Adams

Emily

Simone Bailly

Administrator

Samantha McKenna

Debbie

Zachary Ansley

Alien

Jay Brazeau

Dr. George Bader

Jere Burns

Jake Worthy

Tom Butler

General Morehouse

Chilton Crane

Catharine McCarty

Anthony De Longis

Commander McCarty

Deni DeLory

Alexis Worthy

Bruce Gray

James Harding

Joe Maffei

Landlord

Bill Meilen

Old Drunk

Thomas Potter

Tattooed Thug

Marie Stillin

Allison

Laura Harris

Mona Lisa 37X

Dax Belanger

Security Guard

Mark Brandon

The Gentleman

Biski Gugushe

Chief Technician David

Derek Morrison

Deadbeat

Michael P. Northey

Vern

Rick Poltaruk

Banjo

James Ralph

Ominous Man

Michael David Simms

The Administrator

Sylvesta Stuart

Ominous Man

Julia Tortolano

Amanda Madden

Timothy Webber

Dr. Willard Haley

Dean Wray

Alvin Madden

Garwin Sanford

Peter Chandler

Kwesi Ameyaw

Dr. Adam Meares

Michele Bogdanow

Nurse

Derek Peakman

Dr. Pastore

John Treleaven

Investor

Lindsay Jameson

Nora's Mother

J.M. Landry

Nora's Father

Linnea Sharples

Kamala Shastri

David James Lewis

Will Carson

Peter Grier

Steve

Scott McNeil

Silloin / Linna (voice)

Johnathon Schaech

Andy Pace

Michelle Harrison

Gabrielle Pace

Tom Heaton

Red

P. Lynn Johnson

Lucy

Arnie Walters

Father Pat

Dee Jay Jackson

Joe

Ralph Alderman

Phil

Maxine Miller

Mrs. Fitzgerald

Russell Ferrier

Cop

Howard Siegel

Bum

Kevin Blatch

Jewellery Salesman

Dan Shea

Old Man / Cop

Keith Provost

Dealership Manager

Jeffrey Ballard

Young Boy

Joanna Going

Dr. Anya Kenway

Geraint Wyn Davies

Dr. David LaSalle

William B. Davis

Dr. Frank Biemler

Haig Sutherland

Roy Evereznak

Samantha Grant

Mrs. Vadimsky

Khaira Ledeyo

Jane

Johannah Newmarch

Nancy LaSalle

Shawn Reis

Jensen

Devin Douglas Drewitz

Sasha Vadimsky

Marcy Goldberg

Obnoxious Woman

Glenn Ennis

Guard

Igor Morozov

Russian Scientist

Irene Bedard

Callie Whitehorse Landau

Greg Evigan

Flight Crew Director James Dreeden

Monique Mojica

Grandmother

Helene Joy

Dr. Louisa Kennedy

Cameron Daddo

Alec Landau

Jeremy London

Chris

Rebecca Reichert

Mia

Jud Tylor

Violet

Kavan Smith

Allan

Ken Tremblett

Tom

James Crescenzo

Sylvano

Christina Jastrzembska

Mary Cummings

Steve Archer

Lead Cop

Noah Beggs

Prison Guard

Darren Birch

Test Subject #2

Ben Gehrke

Test Subject #1

Oga Nwobosi

TV Anchorwoman

Ty Olsson

Mike

Xantha Radley

Sarah

Ron Selmour

Carl

John R. Taylor

Leon

Barbara Tyson

Dr. Kate

Robert Weiss

Blue Tech

John Pyper-Ferguson

Dr. Kenneth Vaughn

Artine Tony Browne

Drunk

Britt Irvin

Judith Wilder

Marcel Maillard

Homeless Man

Terry David Mulligan

Chancellor Duncan Wilder

Yvonne Myers

Guard

Barbara Pollard

Alice

Rekha Sharma

Reese

Kristin Lehman

Lorelle Palmer

Ingrid Kavelaars

Angie Palmer

Ryan Robbins

Richard

David Pauls

Travis

Grace Park

Satchko

Emy Aneke

James Williams

Aaron Craven

ROTC Student

Audra Ricketts

Tiana

Lee Tockar

Pothead

Cory Chetyrbok

Hippie

Jesse Cadotte

Cody Phillips

Don Kline

Principal

Eric Schneider

Alien Inquisitor

Michasha Armstrong

Hmong

Anne Marie DeLuise

Miranda

Robert Freeman

Armstrong

Carrie Genzel

Lavinia Oleaga

Scott Hylands

Governor Oleaga

Michael Ironside

Gen. Quince

Shaun Johnston

O'Brien

Catherine Lough Haggquist

Eileen

Ian Marsh

Medusan Defendant

Todd Sandomirsky

Dov

Martin Sims

Andy

Gerry South

Matt

Frank C. Turner

Old Man

Matthew Walker

Kra'dok

Paul Whitney

Bailiff

Charles Zuckermann

Medusan Chieftain

Crystal Bublé

Linda

Stephen Chang

John Li

Roger Cross

Jon

Sarah Deakins

Amanda Nance

Duncan Fraser

Coach Terni

Jeremy Guilbaut

Brent Kearns

Larry Musser

Larry Leonard

Alejandro Rae

Warren

Harry Rob Bruner

Bryce

Jim Byrnes

Merlin

Erica Carroll

Energy Being

Jonathan Cherry

Andy Wilson

Allan Gray

Prometheus

Gus Lynch

Logan

Gabrielle Miller

Megan

Andrew Airlie

Marcus Fellows

Gracie P. Aylward

Lucy

Rhonda Dent

Young Laura Sinclair

Kathleen Duborg

Karen McDonald

Chris Gibson

Pharmacist

Christine Kennedy

Candace

Brandy Kopp

Marilyn

Neil Schell

Dr. Campbell

Jane Sowerby

Susan

Dallas Thompson

Allyson

David Thomson

Mr. Garvey

Joseph Gordon-Levitt

Teenage Boy

Kevan Ohtsji

Cho

Peter Outerbridge

Scientist

Talia Ranger

Kaila

Laara Sadiq

Lt. Conover

Stephen Spender

Corbett

Malcolm Stewart

Garrison

Catherine Zak

Jen Ward

Leanne Adachi

Captain Alice Wheeler

Brent Karl Clackson

Sergeant Streeter

Kim Coates

Colonel Sage

Lochlyn Munro

Captain Eric Woodward

Danny Dworkis

Harry

Ginger Page

Young Nora