Guest Stars Tom Price as Andy Davidson Peter Capaldi as John Frobisher Cush Jumbo as Lois Habiba Nicholas Farrell as Brian Green Lucy Cohu as Alice Carter Katy Wix as Rhiannon Davies Luke Perry as David Davies Ian Gelder as Mr Dekker Susan Brown as Bridget Spears Julia Joyce as Holly Frobisher Madeleine Rakic-Platt as Lilly Frobisher Liz May Brice as Johnson Hilary MacLean as Anna Frobisher Aimee Davies as Mica Davies Rhodri Lewis as Johnny Davies Bear McCausland as Steven Carter Paul Copley as Clemet McDonald Simon Poland voices 456 Gregory Ferguson as Young Clem Louise Minchin as Newsreader Emmanuel Ighodaro as Paramedic Quill Roberts as Guard Libby Liburd as Barmaid Osi Okerafor as Kodak Ashley Hunt as Recovery Worker Robert Shelly as Sentry Fay McDonald as Mother
