Matthew GravelleSelf - Narrator Richard JonesSelf - Head of Major Crime Debbie SmithSelf - Katherine's Mother Rob CronickSelf - Senior Investigating Officer Scott MeacockSelf - Interview Officer Matt WoodmanSelf - Detective Bryan HeardSelf - Lead Negotiator Rob GullifordSelf - Katherine's First Boyfriend Jade PettiferSelf - Katherine's Best Friend Siân GrantSelf - Family Liaison Officer Gareth JonesSelf - Detective Sergeant Matt PowellSelf - Detective Inspector Tony EatonSelf - Search Coordinator Darren GeorgeSelf - Detective Chief Inspector Paul GiessSelf - Detective Chief Inspector Jayne LockSelf - Detective Melanie DeereSelf - Family Liaison Coordinator Emma WilliamsSelf - Jack's Niece Ed GriffithsSelf - Interview Coordinator David WilliamsSelf - Jack's Brother Dean LlewellynSelf - Detective Inspector Emma Warner-BrinleySelf - Family Liaison Officer Iwan RobertsDirector / Producteur Mike BlairExecutive Producer Phil ChappellCinematographer James HarriesCinematographer Paul HawkinsCinematographer Aled JenkinsCinematographer Paul RobertsCinematographer Mark Stroker-BrennanCinematographer Guto VaughanCinematographer Jonathan HillSeries Producer Iwan RobertsSeries Producer 
