Gemma Arterton as Clara Webb

Saoirse Ronan as Eleanor Webb

Sam Riley as Darvell

Jonny Lee Miller as Ruthven

Caleb Landry Jones as Frank

Daniel Mays as Noel

Kate Ashfield as Gabi

Maria Doyle Kennedy as Morag

Uri Gavriel as Savella

Thure Lindhardt as Werner

Barry Cassin as Robert Fowlds

David Heap as Lap Dancing Client

Warren Brown as Gareth

Ruby Snape as Wendy

Jenny Kavanagh as Barmaid

Glenn Doherty as Steve

Edyta Budnik as Nadia

Gabriela Marcinková as Anya

Caroline Johns as Young Clara

Christine Marzano as Mrs. Strange

Jeff Mash as Mark

Ronnie Masterson as Old Lady in Hospital

Patricia Loveland as Old Lady in Hotel

Tom Hollander as Kevin Minton (uncredited)