Guest Stars Simon Dwyer-Thomas as Bones Frankie Keita as Ewan Anthony Webster as Ivan Penderecki Oscar Coleman as Young Jack Zadeiah Campbell-Davies as Emily Mabli Jên Eustace as Jessica Bell Gwion Morris Jones as Hugo Emily Adara as Sophie Hywel Simons as Robbie Kezia Burrows as Veronica Luke Rhodri as Max Emma Cooney as Bethany Jill Baker as Louise Sophie Mensah as Lily Robyn Ashwood as Drunk Girl Bethan Harvey as Sophie's Mum Hywel Morgan as Richard
