Stáblista

·        Rupert Everett - Miss Camilla Fritton & Kalóz Fritton

·        Colin Firth - Geoffrey Thwaites

·        Gemma Arterton - Kelly Jones (ex-Head Girl)

·        David Tennant - Pomfrey & Lord Pomfrey

·        Talulah Riley - Annabelle Fritton (Head Girl)

·        Jodie Whittaker - Beverly

·        Juno Temple - Celia (Echo)

·        Tamsin Egerton - Chelsea Parker

·        Clara Paget - Bella (Posh Totty #2)

·        Gabriella Wilde - Saffy (Posh Totty #3)

·        Sarah Harding - Roxy (Indie)

·        Celia Imrie - Matron

·        Toby Jones - Könyvelő

·        Cloe Mackie - Tania

·        Holly Mackie -Tara

·        Montserrat Lombard - Zoe (Emo)

·        Ella Smith - Lucy (Geek)

·        Zawe Ashton - Bianca (Rude Girl)

·        Jessica Agombar - Jess (Rude Girl - Banned of St. Trinian’s)

·        Jessica Bell - Beth (Emo - Banned of St. Trinian’s)

·        Daisy Tonge - Daisy (Echo - Banned of St. Trinian’s)

·        Harriet Bamford - Harriet (Geek - Banned of St. Trinian’s)

·        Christian Brassington - Peters

·        David Armand - Rendőr