Guest Stars Gerran Howell as Rhys Simpson Louis Serkis as Johnny Williams Mark Lewis Jones as Caleb Williams Carly-Sophia Davies as Sadie Simpson Eiry Thomas as PC Jane Crowther Natalia Kostrzewa as Eva Bartosz Michael Obiora as Scott Foley Sharon Morgan as Gwen Thomas Marcin Zarzeczny as Pavel Waj Ali as Khalad Rogan Cat Simmons as Robyn Amy Griffiths as Meg Roberts Aneirin Hughes as Nigel Hoyle Gwen Ellis as Doris David Broughton-Davies as Gareth Michael Elwyn as Owen Thomas Phil Howe as Ronnie Burke