Christopher Slade
В роли: Narrator (голос)

Laurence Alison
В роли: Self - Forensic Psychologist, University of Liverpool (как Prof Laurence Alison)

Jeff Edwards
В роли: Self - Former 'Daily Mirror' Crime Correspondent

Conrad Ellam
В роли: Self - Former Partner of Samantha Bisset

Alan Jackaman
В роли: Self - Former Detective Sergeant, Metropolitan Police

Robin McCarlie
В роли: Self - Former Work Colleague

Bill Peak
В роли: Self - Former School Friend

Katherine Ramsland
В роли: Self - Forensic Psychologist (как Dr Katherine Ramsland)

Dr. Louis B. Schlesinger Ph.D.
В роли: Self - Forensic Psychologist (как Prof Louis Schlesinger)

Ron Turnbull
В роли: Self - Homicide Advisor