Guest Stars Hannah Arterton as DC Ally Caine Geraldine James as Julie Wells Michael Maloney as Alan Wells Don Warrington as Ray Kenwood Sophia La Porta as Britnay Shearer Kim Allen as Jane Shilling Lauren Douglin as Izzy Allan Aedan Duckworth as Young Mark Saoirse-Monica Jackson as Sasha Leon Ward as Andy Lara Bradban as Blonde Dylan Jupp as Simon Marshall Megan Bradley as Young Pru Niall Greig Fulton as Richard Payne Charles De'Ath as Dominic Porter Sophie Simnett as Blonde Student Alexa Davies as Alexa Seeta Indrani as Dr. Khan Lola Mae Loughran as Chrissie Cherrelle Skeete as Clare James Boyland as DS Cal Brown Leah Haile as Cocky Student Alex Okoampa as Rashan Shaheen Khan as Mrs. Palmer Helen Barford as Police Officer Debra Baker as Mrs. Mills Heather Phoenix as Psychologist Kirsty Sawyer as Chloe Yemisi Oyinloye as Desk Sergeant Paul Ryan as Mr. Mills
