Guest Stars Ncuti Gatwa as Eric Effiong Connor Swindells as Adam Groff Emma Mackey as Maeve Wiley Aimee Lou Wood as Aimee Gibbs Kedar Williams Stirling as Jackson Marchetti Alistair Petrie as Headmaster Michael Groff Mimi Keene as Ruby Matthews Chinenye Ezeudu as Viv Odusanya Tanya Reynolds as Lily Iglehart George Robinson as Isaac Goodwin Patricia Allison as Ola Nyman Jim Howick as Mr. Hendricks Mikael Persbrandt as Jakob Nyman Rakhee Thakrar as Miss Sands Chris Jenks as Steve Morley Chaneil Kular as Anwar Sami Outalbali as Rahim Hannah Waddingham as Sofia Marchetti Simone Ashley as Olivia Anne-Marie Duff as Erin Wiley Sharon Duncan-Brewster as Roz Marchetti Doreene Blackstock as Beatrice Effiong George Somner as Joe Conor Clarke McGrath as Courgette Connor Jojo Macari as Kyle Armin Karima as Malek Jack Helsby as Jack George Georgiou as Yousef Sindhu Vee as Olivia's Mum Femi Elufowoju, Jr as Prophet Joshua Catriona Knox as Natalie Olivia Beaumont as Anthea Effiong