Guest Stars Jamie Sives as Jeb Colman Ruta Gedmintas as Teresa Morgan Jay Simpson as DS Ron Singer Alan Williams as Frank Lawson Pooky Quesnel as Ruth Hyde 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 Theo Barklem-Biggs as Jason Byrne Adam Kotz as Dr Mike Rountree Joe Zanetti as Felix Hyde Milo Twomey as Joe Wightman Cleo Sylvestre as Ilse Lawson Madlen Meyer as Nina Huber Glen Wallace as Sean O'Donnell William Ellis as Malcolm James Lotte Spring Rice as Production Assistant