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
Sarah Harding
Roxy
Zawe Ashton
Bianca
Ella Smith
Lucy
Celia Imrie
Matron
Clara Paget
Bella
Gabriella Wilde
Saffy
Cloe Mackie
Tania
Holly Mackie
Tara
Christian Brassington
Peters
Tom Riley
Romeo
Georgia King
Juliet
Pip Torrens
Heathcoat Parker
Zara Treherne
Georgiana
Tallulah Evans
Jeminima
Lola Mae Loughran
Patience
Edith Thompson
Tabitha
Florence Grounds
Julie
Jessica Agombar
Jess
Harriet Bamford
Harriet
Daisy Tonge
Daisy
Katherine Parkinson
Physics Teacher
Freddie Fox
Head Boy
Salah Essayah
Pomfrey's Henchman
Colin Michael Carmichael
Police Officer
David Armand
Police Officer
Angus Barnett
Drunken Sailor
Giles New
Drunken Sailor
Steve Furst
Arbuthnott
Humphrey Ker
AD1 Member
Ricky Wilson
Rockstar
Denise Stephenson
Reporter
Paul Putner
Steve the Barman
Aran Bell
Headmaster
Ross Peacock
Globe Audience Member (uncredited)
Jessica Henwick
Globe Girl
Cloi Mckee
Tania