Talulah Riley

Character: Annabelle Fritton

Rupert Everett

Character: Camilla Fritton / Captain Archibald Fritton / Fortnam Fritton

Gemma Arterton

Character: Kelly Jones

David Tennant

Character: Captain Lord Pomfrey / Sir Piers Pomfrey

Colin Firth

Character: Geoffrey Thwaites

Jodie Whittaker

Character: Beverly

Juno Temple

Character: Celia

Tamsin Egerton

Character: Chelsea Parker

Toby Jones

Character: Bursar

Sarah Harding

Character: Roxy

Zawe Ashton

Character: Bianca

Montserrat Lombard

Character: Zoe

Ella Smith

Character: Lucy

Celia Imrie

Character: Matron

Clara Paget

Character: Bella

Gabriella Wilde

Character: Saffy

Cloe Mackie

Character: Tania

Holly Mackie

Character: Tara

Christian Brassington

Character: Peters

Tom Riley

Character: Romeo

Georgia King

Character: Juliet

Pip Torrens

Character: Heathcoat Parker

Zara Treherne

Character: Georgiana

Tallulah Evans

Character: Jeminima

Lola Mae Loughran

Character: Patience

Edith Thompson

Character: Tabitha

Florence Grounds

Character: Julie

Jessica Agombar

Character: Jess

Harriet Bamford

Character: Harriet

Jessica Bell

Character: Beth

Daisy Tonge

Character: Daisy

Katherine Parkinson

Character: Physics Teacher

Freddie Fox

Character: Head Boy

Salah Essayah

Character: Pomfrey's Henchman

Colin Michael Carmichael

Character: Police Officer

David Armand

Character: Police Officer

Angus Barnett

Character: Drunken Sailor

Giles New

Character: Drunken Sailor

Steve Furst

Character: Arbuthnott

Humphrey Ker

Character: AD1 Member

Ricky Wilson

Character: Rockstar

Denise Stephenson

Character: Reporter

Paul Putner

Character: Steve the Barman

Aran Bell

Character: Headmaster

Ross Peacock

Character: Globe Audience Member (uncredited)

Jessica Henwick

Character: Globe Girl

Cloi Mckee

Character: Tania