Adrian Scarborough Detective Inspector Max Arnold Actor Cecilia Appiah PC Lana Appleby Actor Vanessa Emme DS Layla Walsh Actor Sonita Henry DS Priya Shamsie Actor Peter Bankole DC Connor Pollock Actor Lucy Phelps DC Jess Lombard Actor Michael D. Xavier Patrick Thompson Actor Frances Barber Olivia Arnold Actor Anamaria Marinca Astrid Fischer Actor Cayvan Coates Luca Romano Actor Jeremias Amoore Eric Heidegger Actor Martha Kirby Chloe Carmichael Actor Jack Cooper Stimpson Finn Davidson Actor Libby Mai Petal Fisk Actor Sophie Stone CMO Ashley Wilton Actor Mark Bazeley Jon Taylor Actor Brian Bovell Billy Ford Actor Freddie Dennis Dominic Hammond Actor Rose Galbraith Leah Hammond Actor Hermione Gulliford Jennifer Leyland Thompson Actor Richard Signy Director Peter Fincham Writer, Executive Producer Catherine Mackin Executive Producer Darcia Martin Director Ella Kelly Producer Liz Lake Writer Glen Laker Writer, Associate Producer Jennie Darnell Director Lauriel Martin Producer