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 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 Sami Outalbali as Rahim Hannah Waddingham as Sofia Marchetti Anne-Marie Duff as Erin Wiley Sharon Duncan-Brewster as Roz Marchetti Doreene Blackstock as Beatrice Effiong George Somner as Joe Lisa Palfrey as Cynthia Joe Wilkinson as Jeffrey Lino Facioli as Dex Thompson James Purefoy as Remi Milburn Mirren Mack as Florence George Georgiou as Yousef T'Nia Miller as Maxine Tarrington Stephen Fry as Quiz Host Sarah Malin as Social Worker Myriam Acharki as Dr. Gupta Jonny Muir as Simeon Dee Ahluwalia as Quentin