Guest Stars Daisy Head as Amy Stevenson Kieran O'Brien as Andy Stevenson Polly Walker as DI Baker Joel Morris as DS Houghton Bradley Johnson as Noah Stevenson Tom Brittney as Tyler Mitchell Kathleen McDermott as Laura Terny Jonah Stevenson as Journalist Paul Dunphy as News reporter Poppy Lee Friar as Mary Campbell Simon Williams as William Forcett Kirstie Steele as Helena Jayne Sheldon as Woman Gabriel Paul as Kitchen Fitter Lorraine Simpson as Denise Simpson