Sobowtór
Simon to nieśmiały młody mężczyzna. W pracy jest niedoceniany, matka go gnębi, a kobieta jego marzeń nie dostrzega. Mimo to Simon czuje, że nie jest w stanie zmienić tych rzeczy. Przybycie nowego współpracownika, Jamesa, burzy spokój mężczyzny. James jest fizycznie podobny do Simona, ale stanowi jego całkowite przeciwieństwo.
Zwiastun
Obsada
Chris Morris
Workers' Services Executive
Kierston Wareing
James' Funeral Date
Daniel Chapple
Executive Worker (uncredited)
Yasmin Paige
Melanie
Susan Blommaert
Liz
Bruce Byron
Skinhead
Nathalie Cox
'The Replicator' - Jack's Wife
Catherine Delaloye
Air Hostess (uncredited)
Noah Taylor
Harris
Tim Key
Care Worker
Andrew Gruen
Man on Train
Morrison Thomas
Coughing Man
Steve Saunders
Moaning Man on Trolley (uncredited)
Natalia Warner
The Girl (uncredited)
Jesse Eisenberg
Simon James / James Simon
Mia Wasikowska
Hannah
James Fox
The Colonel
Cathy Moriarty
Kiki
Kim Noble
Box Man / Guard 1
Gemma Chan
'The Replicator' - Glamourous Judge
Danny
Singer (uncredited)
Lydia Fox
Well-Dressed Woman at Ball / Test Invigilator
Joanna Finata
Bar Girl (uncredited)
Chris O'Dowd
Nurse
Rade Šerbedžija
Frightening Old Man (uncredited)
Wallace Shawn
Mr. Papadopoulos
Phyllis Somerville
Simon's Mother
Sally Hawkins
Receptionist at Ball
Paddy Considine
'The Replicator' - Jack
Lukas DiSparrow
Resident (uncredited)
Tony Rohr
Rudolph
Gabrielle Downey
Strange Woman
Craig Roberts
Young Detective
Kobna Holdbrook-Smith
Guard / Doctor
J. Mascis
Janitor