Guest Stars Derek Riddell as Pete Shawe Peter Wight as Charlie Edwards Kate Ashfield as Yvonne Fulcher Owain Arthur as DI Sean Memory Jake Davies as Liam O'Callaghan Jessica D'Arcy as Lora O'Callaghan Ian Puleston-Davies as Mick O'Callaghan Charlie Cooper as Kevin Reape Rufus Gerhardt-Williams as Aiden O'Callaghan Dominic Tighe as DS Bob Cooper Simone Lahbib as Debbie Stephanie Hyam as Becky Godden-Edwards Christopher Fulford as John Godden Daniel Betts as ACC Mike Veale Gary Oliver as DCC Pat Geenty Caroline Bartleet as DS Sarah Bilston Florence Howard as Sian O'Callaghan David Nellist as DI Steve Kirby Andrew Brooke as Coleman David Keeling as CC Brian Moore Evelyn Hoskins as Halliwell's Daughter Caroline Langrishe as Mrs. Justice Cox Nathaniel Parker as Richard Latham QC Paul Bown as Roy Sandlake Colin Mace as Ian Lawrie QC Ian Conningham as Doctor Andrew Rattenbury as Rob Murphy Thomas Coombes as Driver