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 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 Dua Saleh as Cal Bowman Sami Outalbali as Rahim Simone Ashley as Olivia Anne-Marie Duff as Erin Wiley Doreene Blackstock as Beatrice Effiong George Somner as Joe Jemima Kirke as Hope Haddon Indra Ové as Anna Jason Isaacs as Peter Groff Suzanne Bertish as Dr. Cutton Kieron Moore as Student Anna Ruben voices Peter's Wife