First broadcast 16th/17th January 2017.<br /><br />Lorna Katz's body is pulled from the Thames and DI Heather Ashton hauls in Kieran Vale, the boyfriend Lorna dumped but wanted to get back with.<br /><br />Emilia Fox - Dr. Nikki Alexander<br />David Caves - Jack Hodgson<br />Richard Lintern - Dr. Thomas Chamberlain<br />Liz Carr - Clarissa Mullery<br />Edward Bourne - Young Ben Logan (as Edward Richards)<br />Bartley Burke - Shaun Cohen<br />Tom Carter - Young Aaron Logan<br />Harris Dickinson - Aaron Logan<br />Lewis Griffin - Kieran Vale (as Lewis Griffith)<br />Mufrida Hayes - Jean<br />Ty Hurley - CID<br />Melissa James - Zoe<br />Kate McLaughlin - Ruth Tresize<br />Rhoda Ofori-Attah - Stella Tuffour<br />Eva Pope - DI Heather Ashton<br />Claire Rafferty - Sarah Logan<br />Nav Sidhu - DS Carl Pope<br />Sarah Smart - Ali Tresize<br />Saria Steyl - Natasha Hill (as Saria Steel)<br />Jo Stone-Fewings - Chris Tresize<br />Morgan Watkins - Ben Logan<br />Alya Elouissi - Passerby<br />Robert Styles - Malcolm Glasgow<br />Janette Sharpe - Prison Officer
