David Holmes

Self - Criminal Profiler

Keri Nixon

Self - Forensic Psychologist

Rav Wilding

Self - Narrator

Sally Wolter

Self - Retired Detective Sergeant

Tony Blockley

Self - Lecturer in Criminology and Policing

Colin Sutton

Self - Former Senior Investigating Officer

Brian Hook

Self - Former Homicide Detective

Fiona Brookman

Self - Professor of Criminology

Howard Groves

Self - Metropolitan Police

Mike Southwell

Self - Former Senior Investigating Officer

Julian Boon

Self - Forensic Psychologist

Helen Meadows

Self - Forensic Anthropogist

Jon Buehler

Self - Former Homicide Detective

Karin Spenser

Self - Lecturer in Criminal Psychology

Jo Millington

Self - Forensic Scientist

Stuart Hamilton

Self - Home Office Pathologist

Allen Brocchini

Self - Former Homicide Detective

Dave Hachmeister

Self - Former Chief Deputy, Jo Daviess County Sheriff's Office