| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Chris Ihlenfeldt | Crew | Production | Production Assistant | 12 |
 Johnny Dodd | Cast | Actor | Self - Staff Writer, People Magazine) | 4 |
 Michael Fleeman | Cast | Actor | Self - Journalist | 1 |
 David Christopher Wells | Cast | Actor | Narrator (voice) | 89 |
 Jess Cagle | Cast | Actor | Self - Editor-in-Chief, People Magazine | 15 |
 Robert Kolker | Cast | Self - True Crime Author, "Lost Girls" | 2 | |
 Mike Watkiss | Cast | Actor | Self - TV News Reporter | 1 |
 Dan Wakeford | Cast | Actor | Self - Deputy Editor, People Magazine | 8 |
 Rebecca Whitman | Cast | Det. Boldi | 1 | |
 Cyril H. Wecht | Cast | Actor | Self - Forensic Pathologist | 1 |
Jerry Mitchell | Cast | Actor | Self - True Crime Author, "Gone" | 1 |
Cynthia Sanz | Cast | Actress | Self - Executive Editor, People Magazine | 13 |
Caitlin Keating | Cast | Self - Staff Writer, People Magazine | 3 | |
Peter Meyer | Cast | Self - True Crime Author, "Blind Love" | 1 | |
 Christine Pelisek | Cast | Actress | Self - Senior Writer, People Magazine | 13 |
Elaine Aradillas | Cast | Self - Staff Writer, People Magazine | 3 | |
Alicia Dennis | Cast | Actress | Self - Senior Editor, People Magazine | 15 |
Nicole Weisensee Egan | Cast | Actress | Self - Senior Writer, People Magazine | 2 |
Caitlin Rother | Cast | Self - True Crime Co-Author, "Hunting Charles Manson" | 1 | |
Chris Harris | Cast | Actor | Self - Senior Reporter, People Magazine | 1 |
Gillian Telling | Cast | Self - Senior Editor, People Magazine | 1 | |
 Kate Coyne | Cast | Actress | Self - Executive Editor, People Magazine | 5 |
Stella Sands | Cast | Actress | Self - True Crime Author | 1 |
 Michael Benson | Cast | Actor | Self - True Crime Author, "Murder in Connecticut" | 1 |
Vickie Bane | Cast | Self - Reporter, People Magazine | 1 | |
Ruben Ray | Cast | Actor | Kevin Collins | 1 |
| Person | Type | Job | Role(s) | Episodes |
