Robbie Coltrane DI Douglas Hain Actor Bel Powley Carrie Walsh Actor Amanda Hale Carol Walsh Actor Lucy Cohu Sally Actor Nicholas Gleaves Oliver Actor Sharon Small Dr. Laura Maitland Actor Lorraine Ashbourne Rachel Actor Yasmin Paige Jess Actor Andrew Tiernan Whitaker Actor Guy Henry Crawford Actor Michael Bertenshaw Steve Tobias Actor David Westhead Tony Philips Actor Paul Thornley Connor Mackie Actor David Gyasi Will Actor Mali Harries DC Hart Actor Jason Watkins Ed Croom Actor Endy McKay Receptionist Actor Kali Connery Young McGrath Actor Catherine Morshead Director David Pirie Writer