Guest Stars John Hannah as Dr Charles Beck Josette Simon as DCI Jane Ford Leo Staar as Calvin Dunn Casper Knopf as Young Lee Dunn Laura White as Aysha Marsh Anders Hayward as Lee Dunn Trevor Kaneswaran as DC Leo Naziri Emily John as Mia Dunn Jasmin M. Stewart as Uniformed Officer Joanna Burnett as PC Patel Charlie Beck as PC Spencer