Damian Lewis
Lord Davenport
Katherine Waterston
Lady Davenport
Thomasin McKenzie
Rose
Ben Radcliffe
Eric
Tom Felton
Archibald
Emma Laird
Poppy
Tom Goodman-Hill
Inspector Watt
Ramon Tikaram
Darvesh Khalid
Tim McMullan
Cyril
Anna Maxwell Martin
Mrs McAllister
Sue Johnston
Great Aunt Bonaparte
Hayley Mills
Rose Davenport (voice)
Adam Woodward
Bert Chester
Lily Knight
Fifi Valentine
Erin Austen
Mary & Constance Bechdel
Lizzie Hopley
Phyllis Davenport
Jason Done
JRR Tolkien
Laurie Ogden
Patricia
Paula Wharton
Mrs Kitchen
Nathan McMullen
Alexander
James Stanley
Richard
Karen Henthorn
Sister Jude
Ian Bartholomew
Austin Blaine
Nicholas Hale
Banker
Lee Boardman
Karl
Charlie Rawes
Drunk Alan / Prison Guard
Shaun Mason
Army Officer
John Thomson
Bill
Jimmy Carr
Vicar
Gemma Wardle
Gladys
Dean Fagan
Prison Guard
Brainard Oyani
Prospective Hall Boy
Magdalena Sverlander
Rose Seller
Alex Butler
Lionel (uncredited)
Nathan Hall
Footman (uncredited)