John Simm DS Roy Grace Actor Richie Campbell DS Glen Branson Actor Zoe Tapper Cleo Morey Actor Laura Elphinstone DS Bella Moy Actor Brad Morrison DC Nick Nicholl Actor Sam Hoare ACC Cassian Pewe Actor Rebecca Scroggs Ari Branson Actor Juliette Motamed DC Vee Wilde Actor Gethin Anthony Marcus O'Sullivan Actor Loreece Harrison Lauren Packham Actor Andrew Knott Corin Belling Actor Naomi Yang Jessica O'Sullivan Actor Lisa Diveney Hannah Belling Actor Shanay Neusum-James Jasmine Alson Actor Kiran Landa Sara Joshi Actor Joe Hughes Seymour Darling Actor Caroline Gruber Chief Constable Actor Rebecca Banatvala Dr. Rita Josif Actor Carolina Valdés Nadiuska De Sancha Actor Nimmy March Margaret Packham Actor Anne Kavanagh Nora Davis Actor Finn Guegan Bruno Actor Tony Wadham Chris Haddock Actor Cavan Clarke Forensic Scientist Actor Kiaran Murray-Smith Producer Matthew Slater Original Music Andrew O'Connor Executive Producer Patrick Schweitzer Executive Producer Russell Lewis Executive Producer Peter James Executive Producer Paul Sandler Executive Producer Caroline Carver Writer Nirpal Bhogal Director