Matt Smith as Christopher Isherwood

Imogen Poots as Jean Ross

Lindsay Duncan as Kathleen Isherwood

Perry Milward as Richard Isherwood

Toby Jones as Gerald Hamilton

Pip Carter as W. H. Auden

Alexander Dreymon as Caspar

Faolan Morgan as Pieps

Issy van Randwyck as Frl. Thurau

Clare Louise Connolly as Frl. Schmidt

Maggie Hayes as Frl. Mayr

Iddo Goldberg as Wilfrid Landauer

Will Kemp as Bobby Gilbert

Douglas Booth as Heinz Neddermayer

Gertrude Thoma as Fr. Neddermayer

Tom Wlaschiha as Gerhardt Neddermayer

Stuart Graham as Passport Officer

Alana Kerr as Tarty Girl (uncredited)

Owen Dickey as Stage Manager (uncredited)

Tony Finnegan as Salesman (uncredited)

David Lloyd as German Soldier (uncredited)

Hugh McLaughlin as German Soldier (uncredited)