Guest Stars Orla Bayne as Young Holly Mark Strepan as Rory Sawyer Emun Elliott as Alistair McDermid Sorcha Groundsell as Elizabeth Smith Evie Brassington as Young Georgia Chris Fulton as Charlie Lamont-Smith Jack Bannon as James Buxton Harris Dickinson as Sam Peter Bankole as Mo Jasmine Main as Student 2 Nadia Faccenda as Zoe Euan Gilroy as Student 1 David Mairs as Student 3