Cillian Murphy

Tom Buckley

Sigourney Weaver

Margaret Matheson

Robert De Niro

Simon Silver

Toby Jones

Paul Shackleton

Joely Richardson

Monica Handsen

Elizabeth Olsen

Sally Owen

Craig Roberts

Ben

Leonardo Sbaraglia

Palladino

Adriane Lenox

Rina

Garrick Hagon

Howard McColm

Burn Gorman

Benedict Cohen

Mitchell Mullen

Jim Carroll

Madeleine Potter

Sarah Sidgwick

Eloise Webb

Susan Sidgwick

Jeany Spark

Traci Northrop

Jan Cornet

David Matheson

Robert G. Slade

Interviewer - 70's

Eugenio Mira

Young Simon Silver

Lynn Blades

Dana

Eben Young

Dick

Jee-Yun Lee

Fiona Stewart

Karen David

Female Reporter #2

Peter Brooke

Male Reporter #1

Robert Paterson

Male Reporter #2

Jeff Mash

Male Reporter #4

Liliana Cabal

Female Reporter - SPRC

Harris Gordon

Male Reporter - SPRC

Josette Simon

Corrine

Patricia Potter

Female Doctor

Ray Olubowale

Bodyguard

Simon Lee Phillips

Standing Spectator

Gina Bramhill

Judi Cale

Jajube Mandiela

Girl With Piercings

Paulette Sinclair

Woman in Wheel-Chair

Jean Daigle

Sally's Father

Eric Loren

Policeman

Julius Cotter

Dr. Jennings

Markus Parilo

Notebook Man

Kathy Imrie

Indigent Woman

Aidan Shipley

Tom's Soldier Son

Anna Ferguson

Older Sally

Richard Felix

Man in Bathroom #1

Lex Lang

Presenter #1

Bridget Hoffman

Radio Duo Female Voice (voice)

Rif Hutton

Radio Duo Male Voice (voice)

Grant George

Presenter #2

Pablo Derqui

David (uncredited)

Nikol Kollars

Lab Telekinesis Scientist (uncredited)

Jack Queralt

Journalist (uncredited)