 | Susanna Reid als Presenter - Herself |
| Louise Harries als Self - Specialist Interviewer (as D.I. Louise Harries) |
| Steve Wilkins als Self - Senior Investigating Officer (as D.C.S. Steve Wilkins) |
| Glan Thomas als Self - Forensics Manager |
| Angela Gallop als Self - Lead Forensics Advisor (as Dr Angela Gallop) |
| Adrian Cooper als Son of Serial Killer, John Cooper |
 | Jim Bowen als Self - Bullseye Presenter (archive footage) (uncredited) |
| John Cooper als Self (archive footage) (uncredited) |
| Daniel Kilroy | Producer |
| Mark Rossiter | Producer |
| Liz Collier | Producer |
| Victoria Stable | Producer |
| Derek Wilson | Editor |
| Hannah Keep | Producer |
| Jackie McKinney | Line Producer |
| Wayne Roberts | Sound |
| Alex Ward | Art Direction |
| Lou Westlake | Producer |
| Laura Vaughan | Producer |
| Ninder Billing | Executive Producer |