Guest Stars Sam Bottomley as Ralph Roberts Shaun Thomas as Tom "Craggy" Cragg Oscar Kennedy as Young Liam Aqib Khan as Adnan "Addy" Masood Rosie Cavaliero as Linda (Liam's Mum) Steve Pemberton as The Gardener Joel Phillimore as Marcus Emma Beattie as Cambridge Interviewer Jemma Churchill as Mrs Peacock Don Gallagher as School Interviewer Andrew Turner as Fake Librarian Gareth Kane as Solar Panels Customer Olivia Jerdin as Kara
