Guest Stars Will Brown as Checkers Bryony Hannah as Detective Caroline Ridge Jonathan Aris as Greg Owen Amelia Clarkson as Keves Papadouris John Henshaw as Detective Hough Jane Bertish as Bella Co Starring Aravind Ravi as Jay Jack Barton as Osterhaus Joshua Ben-Tovim as Archie Philip Joslyn as Billy the Barman Sophie Lund as Penny Richard Leeming as McGee Darwin Taylor as Helen's Driver Philip Shaun McGuinness as Gray Karl Cam as Jimmy Cupid Darneil Owens as City Worker John Moraitis as Motherhouse Librarian Chris Chilton as Punter Uncredited Simona Brown as Soledad Marcel