Guest Stars Ruta Gedmintas as Teresa Morgan Jamie Sives as Jeb Colman Jay Simpson as DS Ron Singer Pooky Quesnel as Ruth Hyde Alan Williams as Frank Lawson David Pusey as DC Max Cauldwell Teddy Fitzpatrick as Young Luke Reid Jude Foley as Older Luke Reid Tommy Potten as Sam Colman Daniel Runacres-Grundstrom as Callum Reid Jade Ogugua as DC Lenny Jackson Linda Marlowe as Lynn Brand Tom Beard as DSI Alan Reece Arsher Ali as DS Vinesh Roy Adam Kotz as Dr Mike Rountree Joe Zanetti as Felix Hyde Christopher Fulford as Tom Rose Nicola Sian as Miss Brenner Jenny Howe as Child Psychologist Rick Bacon as Educational Psychologist Lorraine Hilton as Sister Anne