 Nicholas HoultJ.R.R. Tolkien | J.R.R. Tolkien |
 Lily CollinsEdith Bratt | Edith Bratt |
 Colm MeaneyFather Francis Morgan | Father Francis Morgan |
 Derek JacobiProfessor Joseph Wright | Professor Joseph Wright |
 Harry GilbyYoung J.R.R. Tolkien | Young J.R.R. Tolkien |
 Mimi KeeneYoung Edith Bratt | Young Edith Bratt |
 Anthony BoyleGeoffrey Bache Smith | Geoffrey Bache Smith |
 Adam BregmanYoung Geoffrey Bache Smith | Young Geoffrey Bache Smith |
 Patrick GibsonRobert Q. Gilson | Robert Q. Gilson |
| AAlbie MarberYoung Robert Q. Gilson | Young Robert Q. Gilson |
 Tom Glynn-CarneyChristopher Wiseman | Christopher Wiseman |
 Ty TennantYoung Christopher Wiseman | Young Christopher Wiseman |
 Craig RobertsPrivate Sam Hodges | Private Sam Hodges |
 Pam FerrisMrs. Faulkner | Mrs. Faulkner |
| JJames MacCallumHilary Tolkien | Hilary Tolkien |
 Guillermo BedwardYoung Hilary Tolkien | Young Hilary Tolkien |
 Laura DonnellyMabel Tolkien | Mabel Tolkien |
 Genevieve O'ReillyMrs. Smith | Mrs. Smith |
 Owen TealeHeadmaster Gilson | Headmaster Gilson |
 Al BollandsFirst Soldier | First Soldier |
| KKallum TolkienSecond Soldier | Second Soldier |
 Nia GwynneBronwen | Bronwen |
 Adrian SchillerEnglish Master | English Master |
| TToby NashMackintosh | Mackintosh |
| MMichael BrycesonGoodson-Thomas | Goodson-Thomas |
| AAndrew BissellRugby Coach | Rugby Coach |
 Sian CrispWaitress | Waitress |
| AAntony Raymond BarlowMaître d' | Maître d' |
| DDavid PuckridgeBox Office Man | Box Office Man |
 David BromleySchoolmaster | Schoolmaster |
