Guest Stars Isobelle Molloy as Ruby Williams Sophia del Pizzo voices DS Nikki Martel Rohan Nedd as Charlie Nolan Cathy Tyson as Tina Rowe Michael Higgs as Frank Matheson Oliver Dench as Max Azarov Yazzmin Newell as Alice McGuire Nicola Stephenson as Connie Rowe Georg Nikoloff as Arzeni Azarov Guy Burgess as Stroud Tanya-Loretta Dee as Doctor