Guest Stars Amy Wren as Gemma Hillman Phil Davis as DI Liam Cox Catherine Tyldesley as Kate Tuckman Sarah Niles as DCI Jill Conroy Erin Shanagher as Fiona Baker Hubert Hanowicz as Pavel Ludic Bronagh Waugh as DC Stella Beckett Marcus Garvey as DC Roly Dalton Shannon Murray as Hayley Jones Dominic Allburn as Carl Tuckman Karen Henthorn as Janice Baines Andrew Hawley as Tim Fehinti Balogun as Greg Sullivan Kíla Lord Cassidy as Caitlin Sterling Sia Kiwa as Melissa Lucy Chambers as Chloe Tuckman Asha Kingsley as Orla Bowers Uncredited Shane Senior as Vic
