Ian McKellen Jimmy Erskine
Ben Barnes Stephen Wyley
Lesley Manville Annabel Land
Gemma Arterton Nina Land
Mark Strong David Brooke
Romola Garai Cora Wyley
Alfred Enoch Tom Tunner
Claire Skinner Mary Brooke
Beau Gadsdon Freya
Ross Armstrong Oswald Mosley (uncredited)
Ron Cook Hugh Morris
Mark Gordon Executive Producer
Jay Simpson Slyfield
Rebecca Gethings Joan
Éva Magyar Dolly Langdon
Nikesh Patel Ferdy Harwood
Nicholas Bishop Richard Pugh
David Higgs Director of Photography
Judah Getz ADR Mixer
Craig Armstrong Original Music Composer
Debra Gillett Mrs. Keefe
Jacob James Beswick Robbie
Grant Crookes Critic (uncredited)
Patrick Marber Writer, Executive Producer
Anand Tucker Director, Executive Producer
Robert Sterne Casting
Eleanor Wyld Isabella / Viola
Nigel Heath Sound Re-Recording Mixer
Loz Schiavo Makeup Designer
Ty Hurley Private Members Club / Bar Patron (uncredited)
Albie Marber Lennie
Avye Leventis Lizzie
Aline Leonello Art Direction
Samuel James Wigmaker
Tom Padley Police Officer
David Gilbery Producer, Executive Producer
Pearce Quigley Mr. Morrisey
Ruth Sullivan Foley Artist
Simon Gershon Sound Designer
Matthew Cottle Graham Meadows
Lucienne Suren Production Design
Eléonore Cremonese Art Direction
Claire Finlay-Thompson Costume Design
Colin Gregory Sound Mixer
Tom Butterfield Executive Producer
Jake Neads Flamineo
Beth Pattinson Executive Producer
Paul Warwick Distinguished Gentleman (uncredited)
Rosalind Grégoire Art Direction
Holly Jenkins Prosthetic Makeup Artist
Jasper Britton Gideon Lambert
Jolyon Symonds Producer
Joe Coen Brachiano
James McNicholas Hospital PC (uncredited)
Bill Kenwright Producer
Amanda George Set Decoration
Oliver Shaw Rowan
Shaula Walker Sound Effects Editor
Luke Scrase Executive Producer
Nick Moss Blackshirt
Shanika Ocean Zanche
Naomi George Executive Producer
Griffin Stevens Lodovico
Cara Ballingall Daphne (uncredited)
Libbi Fox Diana Guinness (uncredited)
Aisling Longshaw Cornelia
Heather Andrews Foley Editor
Ed Madden Ivan Franklin
Harry White Executive Producer
Tom Rouvray Giovanni
Louis Pieris Doctor Julio
Magnus Gordon Gasparo