Isabelle Fuhrman

Character: Leena Klammer / Esther Albright

Matthew Finlan

Character: Gunnar Albright

Julia Stiles

Character: Tricia Albright

Rossif Sutherland

Character: Allen Albright

Hiro Kanagawa

Character: Detective Donnan

Samantha Walkes

Character: Dr. Segar

David Lawrence Brown

Character: Dr. Novotny

Alec Carlos

Character: Mike

Lauren Cochrane

Character: Officer Leahy

Gwendolyn Collins

Character: Anna Troyev

Kristen Sawatzky

Character: Federica

Jeff Strome

Character: Lobby Guard

Andrea del Campo

Character: Betsy

Alicia Johnston

Character: Karen

Liam Stewart-Kanigan

Character: Dude 1

Jade Michael

Character: Girl 1 / Madison

Sarah Luby

Character: Receptionist / Claire

Maxwell Nelson

Character: Little Boy

Bradley Sawatzky

Character: Officer Kusnetsov

Stephanie Sy

Character: Flight Attendant

Marina Stephenson Kerr

Character: Society 1 / Olive

Sharon Bajer

Character: Society 2 / Gertrude

Kennedy Irwin

Character: Esther Body Double

Sadie Lee

Character: Esther Body Double

Erik Athavale

Character: Orderly

Parker Bohotchuk

Character: Laughing Partier #1

Maxine Sanders

Character: Laughing Partier #2

Adam Hurtig

Character: Guard (uncredited)

Morgan Easton-Fitzgerald

Character: Young Esther (uncredited)