Ukweli Roach DI Jack Caffery Actor Iwan Rheon Molina Actor Tim Treloar The Walking Man Actor Sacha Dhawan Honey Actor Gethin Alderman Minnet Kable Actor Juliet Stevenson Matilda Anchor-Ferrers Actor Sian Reese-Williams DI Lincoln Actor Ruby Snape Prody's Mum Actor Owen Teale Oliver Anchor-Ferrers Actor Oscar Coleman Young Jack Actor Annes Elwy Lucia Anchor-Ferrers Actor Frankie Keita Ewan Caffery Actor Anthony Webster Penderecki Actor Kezia Burrows Veronica Actor Emily Adara Sophie Guest Star Kristoffer Nyholm Director Laurent Boissel Executive Producer Elaine Cameron Executive Producer Rebecca Ferguson Executive Producer Megan Gallagher Writer Lee Haven Jones Director Nikki Wilson Producer