Guest Stars Oliver Chris as Guy Cavendish Raza Jaffrey as Jack Oliviera Alexander Karim as Lars Nordström Abhin Galeya as Raz Farooqi Julie Graham as Susan Fisher Elizabeth Dulau as Louise Pennycook Dean Ridge as Simon Segman Aurora Jones as Maggie Cavendish Haydn Gwynne as Anne MacDiarmid Darren Hart as Mr. Williams Tareq Al-Jeddal as Callum Wares Naomi Yang as Mae Zhang Cheryl Mackie as Mrs. Williams Yazzmin Newell as Laura Guy Williams as Prof. Thomas Lucy Black as Hilary Wilshere Jahannah James as Jessica Sarah Lawrence as Layla
