Character Name : Simon James / James Simon

Original Name : Jesse Eisenberg

Gender : Male

Character Name : Hannah

Original Name : Mia Wasikowska

Gender : Female

Character Name : Mr. Papadopoulos

Original Name : Wallace Shawn

Gender : Male

Character Name : Melanie

Original Name : Yasmin Paige

Gender : Female

Character Name : Harris

Original Name : Noah Taylor

Gender : Male

Character Name : The Colonel

Original Name : James Fox

Gender : Male

Character Name : Kiki

Original Name : Cathy Moriarty

Gender : Female

Character Name : Simon's Mother

Original Name : Phyllis Somerville

Gender : Female

Character Name : Strange Woman

Original Name : Gabrielle Downey

Gender : Female

Character Name : Detective

Original Name : Jon Korkes

Gender : Male

Character Name : Young Detective

Original Name : Craig Roberts

Gender : Male

Character Name : Guard / Doctor

Original Name : Kobna Holdbrook-Smith

Gender : Male

Character Name : Liz

Original Name : Susan Blommaert

Gender : Female

Character Name : Skinhead

Original Name : Bruce Byron

Gender : Male

Character Name : Janitor

Original Name : J. Mascis

Gender : Male

Character Name : Rudolph

Original Name : Tony Rohr

Gender : Male

Character Name : Secretary

Original Name : Karima Riachy

Gender : Male

Character Name : Care Worker

Original Name : Tim Key

Gender : Male

Character Name : Man on Train

Original Name : Andrew Gruen

Gender : Male

Character Name : Box Man / Guard 1

Original Name : Kim Noble

Gender : Male

Character Name : Coughing Man

Original Name : Morrison Thomas

Gender : Male

Character Name : Receptionist at Ball

Original Name : Sally Hawkins

Gender : Female

Character Name : Investigator

Original Name : Lloyd Woolf

Gender : Male

Character Name : Well-Dressed Woman at Ball / Test Invigilator

Original Name : Lydia Fox

Gender : Female

Character Name : Waiter / 'The Replicator' - Guard 2

Original Name : Stuart Silver

Gender : Male

Character Name : Workers' Services Executive

Original Name : Chris Morris

Gender : Male

Character Name : Nurse

Original Name : Chris O'Dowd

Gender : Male

Character Name : Priest

Original Name : Donal Cox

Gender : Male

Character Name : James' Funeral Date

Original Name : Kierston Wareing

Gender : Female

Character Name : 'The Replicator' - Jack

Original Name : Paddy Considine

Gender : Male

Character Name : 'The Replicator' - Head Judge

Original Name : Dirk Van Der Gert

Gender : Male

Character Name : 'The Replicator' - Wise Judge

Original Name : Liam Bewley

Gender : Male

Character Name : 'The Replicator' - Glamourous Judge

Original Name : Gemma Chan

Gender : Female

Character Name : 'The Replicator' - Jack's Wife

Original Name : Nathalie Cox

Gender : Female

Character Name : Executive Worker (uncredited)

Original Name : Daniel Chapple

Gender : Male

Character Name : Paramedic (uncredited)

Original Name : Martin Crossingham

Gender : Male

Character Name : Singer (uncredited)

Original Name : Danny

Gender : Male

Character Name : Air Hostess (uncredited)

Original Name : Catherine Delaloye

Gender : Female

Character Name : Resident (uncredited)

Original Name : Lukas DiSparrow

Gender : Male

Character Name : Bar Girl (uncredited)

Original Name : Joanna Finata

Gender : Female

Character Name : Waitress (uncredited)

Original Name : Jeanie Gold

Gender : Female

Character Name : Moaning Man on Trolley (uncredited)

Original Name : Steve Saunders

Gender : Male

Character Name : Frightening Old Man (uncredited)

Original Name : Rade Šerbedžija

Gender : Male

Character Name : The Girl (uncredited)

Original Name : Natalia Warner

Gender : Female