Nicholas Hoult as J.R.R. Tolkien

Lily Collins as Edith Bratt

Colm Meaney as Father Francis Morgan

Derek Jacobi as Professor Joseph Wright

Harry Gilby as Young J.R.R. Tolkien

Mimi Keene as Young Edith Bratt

Anthony Boyle as Geoffrey Bache Smith

Adam Bregman as Young Geoffrey Bache Smith

Patrick Gibson as Robert Q. Gilson

Albie Marber as Young Robert Q. Gilson

Tom Glynn-Carney as Christopher Wiseman

Ty Tennant as Young Christopher Wiseman

Craig Roberts as Private Sam Hodges

Pam Ferris as Mrs. Faulkner

James MacCallum as Hilary Tolkien

Guillermo Bedward as Young Hilary Tolkien

Laura Donnelly as Mabel Tolkien

Genevieve O'Reilly as Mrs. Smith

Owen Teale as Headmaster Gilson

Al Bollands as First Soldier

Kallum Tolkien as Second Soldier

Nia Gwynne as Bronwen

Adrian Schiller as English Master

Toby Nash as Mackintosh

Michael Bryceson as Goodson-Thomas

Andrew Bissell as Rugby Coach

Sian Crisp as Waitress

Antony Raymond Barlow as Maître d'

David Puckridge as Box Office Man

David Bromley as Schoolmaster

Lara Maguire as Rose

Holly Dempster as Beryl

Jane Dixon-Rowland as Mary

David Birkbeck as Porter

Colin Macdonald Burnie as Professor #1

Andy Orchard as Professor #2

Frank Kerr as Drunken Student

Rob Rhys Bond as Photographer

Joel Phillimore as Lieutenant

John Bradfield as Student

Mia Woods as Priscilla Tolkien (Child)

Sienna Woods as Priscilla Tolkien (Child)

Paul Gurcel Escudero as Michael Tolkien (Child)

Harry Webster as John Tolkien Jnr. (Child)

Jack Riley as Christopher Tolkien (Child)