Guest Stars Ncuti Gatwa as Eric Effiong Emma Mackey as Maeve Wiley Connor Swindells as Adam Groff Aimee Lou Wood as Aimee Gibbs Kedar Williams Stirling as Jackson Marchetti Alistair Petrie as Headmaster Michael Groff Mimi Keene as Ruby Matthews Samantha Spiro as Maureen Groff Chinenye Ezeudu as Viv Odusanya George Robinson as Isaac Goodwin Jim Howick as Mr. Hendricks Rakhee Thakrar as Miss Sands Dua Saleh as Cal Bowman Hannah Waddingham as Sofia Marchetti Sharon Duncan-Brewster as Roz Marchetti George Somner as Joe Conor Clarke McGrath as Courgette Connor Thaddea Graham as Sarah "O" Owen Joe Wilkinson as Jeffrey Reda Elazouar as Beau Indra Ové as Anna Alexandra James as Aisha Lisa McGrillis as Joanna Hannah Gadsby as Celia Daniel Ings as Dan Anna Francolini as Gloria Masters Edward Bluemel as Sean Wiley Bella Maclean as Jem Jodie Turner-Smith as God Andi Osho as Nicky Bowman Jack Gleeson as Dodgy Mo Anil Desai as Dr. Hunt Elizabeth Berrington as Samantha Graeme Rooney as Gaz Ayrton English as TBD