Guest Stars Harriet Waters as Taisie Scott Tracie Bennett as Sharon Olivia Rose Smith as Elise Scott Gabrielle Reidy as ACC Karen Zalinski Tony Pitts as Adrian Scott Harry Simpson as Haydn McCartney Ralph Ineson as DS Sullivan Sally Lindsay as Alison Bailey John Owen-Jones as Adam Armitage Nichola Dixon as Mrs. Armitage Philip Broadbent as Toby Harcourt