John Simm Det. Sup. Roy Grace Actor Richie Campbell DI Glenn Branson Actor Zoe Tapper Cleo Morey Actor Laura Elphinstone DS Bella Moy Actor Brad Morrison DC Nick Nicholl Actor Shaun Dingwall Joseph Ludlow Actor Rebecca Scroggs Ari Branson Actor Abhin Galeya Kipp Kavinda Actor Maya Sondhi Dr Zara Kavinda Actor Carolina Valdés Nadiuska De Sancha Actor Tobias Jowett Frank Kavinda Actor Margot Leicester Margot Balkwill Actor Maja Bloom Allegra Actor Oaklee Pendergast Noel Ludlow Actor Ewan Bailey Patrick Morris Actor Kaisa Hammarlund Elena Ludlow Actor Madalina Bellariu Dren Actor Arthur Aliiev Driton Actor Isabelle Shuka Laura Actor Finn Guegan Bruno Actor Eddie Mannon Kona Actor Kiaran Murray-Smith Producer, Executive 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 Jess Williams Writer Jon Jones Director Phil Hunter Executive Producer