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