Guest Stars Anthony Webster as Ivan Penderecki Ciarán Joyce as D.I. Prody Simon Dwyer-Thomas as Bones Frankie Keita as Ewan Zadeiah Campbell-Davies as Emily Oscar Coleman as Young Jack Gwion Morris Jones as Hugo Finnbar Hayman as Sergeant Cox Emily Adara as Sophie Ruby Snape as Prody's Mum Luke Rhodri as Max Gethin Alderman as Minnet Kable