| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Ryan Bergara | Crew | Production | Executive Producer, Writer, Producer, Creator | 30 |
 Shane Madej | Crew | Production | Executive Producer, Producer | 15 |
 Garrett Werner | Crew | Writing | Writer | 21 |
 Katie LeBlanc | Crew | Production | Executive Producer, Director, Supervising Producer | 21 |
 Taye Shuayb | Crew | Directing | Director | 8 |
 Alaina Rook | Crew | Writing | Writer | 1 |
Liza Palmer | Crew | Writing | Writer, Producer | 1 |
Yolanda Rodriguez | Crew | Production | Producer | 2 |
 Agatha Christie | Cast | Actress | Self (archive footage) | 1 |
 Edgar Allan Poe | Cast | Actor | Self (archive footage) | 1 |
 George Reeves | Cast | Actor | Self (archive footage) | 1 |
 Harry Houdini | Cast | Actor | Self (archive footage) | 1 |
 John F. Kennedy | Cast | Actor | Self (archive footage) | 1 |
 Natalie Wood | Cast | Actress | Self (archive footage) | 1 |
 O.J. Simpson | Cast | Actor | Self (archive footage) | 1 |
 Diana, Princess of Wales | Cast | Actress | Self (archive footage) | 1 |
 The Notorious B.I.G. | Cast | Actor | Self (archive footage) | 1 |
 Thelma Todd | Cast | Actress | Self (archive footage) | 1 |
 Tupac Shakur | Cast | Actor | Self (archive footage) | 1 |
 William Desmond Taylor | Cast | Actor | Self (archive footage) | 1 |
 Louis Aimé Augustin Le Prince | Cast | Actor | Self (archive footage) | 1 |
 Amelia Earhart | Cast | Actress | Self (archive footage) | 1 |
Jimmy Hoffa | Cast | Actor | Self (archive footage) | 1 |
Ryan Bergara | Cast | Actor | Self - Host | 66 |
Shane Madej | Cast | Actor | Self - Host | 58 |
 Brent Bennett | Cast | Actor | Self | 9 |
Bugsy Siegel | Cast | Actor | Self (archive footage) | 1 |
 Andrew Ilnyckyj | Cast | Himself | 1 | |
JonBenét Ramsey | Cast | Self (archive footage) | 1 | |
| Person | Type | Job | Role(s) | Episodes |
