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 Chinenye Ezeudu as Viv Odusanya Tanya Reynolds as Lily Iglehart George Robinson as Isaac Goodwin Patricia Allison as Ola Nyman Mikael Persbrandt as Jakob Nyman Chris Jenks as Steve Morley Dua Saleh as Cal Bowman Sami Outalbali as Rahim Doreene Blackstock as Beatrice Effiong Jemima Kirke as Hope Haddon Indra Ové as Anna Robyn Holdaway as Layla Robert Wilfort as Mark Sophie Thompson as Mrs. Inglehart Caroline Martins as Eric's Grandmother Rebecca Root as Policewoman Jerry Iwu as Oba George Asprey as Michael's Father Sophie Bould as Miss Talbot Alexander Harley as Young Michael Lucas Churchill as Young Peter Eloise Groom as Sarah Sadie Byron as Young Lily Tomi Ogunjobi as Beryl