Talulah Riley

Annabelle Fritton

Rupert Everett

Camilla Fritton / Captain Archibald Fritton / Fortnam Fritton

Gemma Arterton

Kelly Jones

David Tennant

Captain Lord Pomfrey / Sir Piers Pomfrey

Colin Firth

Geoffrey Thwaites

Jodie Whittaker

Beverly

Juno Temple

Celia

Tamsin Egerton

Chelsea Parker

Toby Jones

Bursar