| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Bryan Fuller | Cast | Actor | Himself - Guest Judge | 1 |
 Cassandra Peterson | Cast | Actress | Herself - Guest Judge | 3 |
 Colman Domingo | Cast | Actor | Himself - Guest Judge | 1 |
 Danielle Harris | Cast | Actress | Herself - Guest Judge | 1 |
 Derek Mears | Cast | Actor | Himself - Guest Judge | 1 |
 Don Mancini | Cast | Actor | Self - Judge | 5 |
 Gregory Plotkin | Cast | Actor | Himself - Guest Judge | 1 |
 Guillermo Díaz | Cast | Actor | Himself - Guest Judge | 1 |
 Harley Quinn Smith | Cast | Actress | Herself - Guest Judge | 1 |
 Jaime King | Cast | Actress | Herself - Guest Judge | 1 |
 John Kassir | Cast | Actor | Himself - Guest Judge | 1 |
 Jonathan Bennett | Cast | Actor | Self - Host | 33 |
 Juliet Landau | Cast | Actress | Herself - Guest Judge | 1 |
 Lew Temple | Cast | Actor | Himself - Guest Judge | 1 |
 Marisol Nichols | Cast | Actress | Herself - Guest Judge | 1 |
 Mick Garris | Cast | Actor | Himself - Guest Judge | 1 |
 Miles Teves | Cast | Actor | Self - Judge | 4 |
 Rob Zombie | Cast | Actor | Himself - Guest Judge | 1 |
 Robert Patrick | Cast | Actor | Himself - Guest Judge | 1 |
 Robin Atkin Downes | Cast | Actor | Himself - Guest Judge | 1 |
 Scout Taylor-Compton | Cast | Actress | Herself - Guest Judge | 1 |
 Sean Gunn | Cast | Actor | Himself - Guest Judge | 1 |
 Shane West | Cast | Actor | Himself - Guest Judge | 1 |
 Shawnee Smith | Cast | Actress | Herself - Guest Judge | 1 |
 Sid Haig | Cast | Actor | Himself - Guest Judge | 1 |
 Todd Tucker | Cast | Actor | Self - Judge | 20 |
 Tom Savini | Cast | Actor | Self - Judge | 4 |
 Tony Todd | Cast | Actor | Himself - Guest Judge | 1 |
 Chaske Spencer | Cast | Actor | Himself - Guest Judge | 1 |
 Elizabeth Tulloch | Cast | Actress | Herself - Guest Judge | 1 |
 Fiona Dourif | Cast | Actress | Herself - Guest Judge | 1 |
 Francia Raísa | Cast | Actress | Herself - Guest Judge | 1 |
 Jackson Rathbone | Cast | Actor | Himself - Guest Judge | 1 |
 Justin Willman | Cast | Actor | Self - Host | 16 |
 Naomi Grossman | Cast | Actress | Herself - Guest Judge | 1 |
 Rossi Morreale | Cast | Self - Host | 4 | |
 Rutina Wesley | Cast | Actress | Herself - Guest Judge | 1 |
 Adi Shankar | Cast | Actor | Himself - Guest Judge | 1 |
 Carlson Young | Cast | Actress | Herself - Guest Judge | 1 |
 Charlaine Harris | Cast | Actress | Herself - Guest Judge | 1 |
 Jocelin Donahue | Cast | Actress | Herself - Guest Judge | 1 |
 Sara Canning | Cast | Actress | Herself - Guest Judge | 1 |
 Zak Bagans | Cast | Actor | Self - Host | 15 |
 Benjamin Papac | Cast | Actor | Himself - Guest Judge | 1 |
 Katie Sarife | Cast | Actress | Herself - Guest Judge | 1 |
 Bex Taylor-Klaus | Cast | Themself - Guest Judge | 1 | |
 Caleb McLaughlin | Cast | Actor | Himself - Guest Judge | 1 |
 LeeAnna Vamp | Cast | Actress | Herself - Guest Judge | 1 |
 Jeremy Ray Taylor | Cast | Actor | Himself - Guest Judge | 1 |
 Gaten Matarazzo | Cast | Actor | Himself - Guest Judge | 1 |
 R.L. Stine | Cast | Actor | Himself - Guest Judge | 1 |
 Brian Kinney | Cast | Self - Judge | 12 | |
 Shinmin Li | Cast | Actress | Self - Judge | 68 |
 Aarti Sequeira | Cast | Actress | Self - Judge | 23 |
 Eddie Jackson | Cast | Actor | Self - Host | 15 |
| Person | Type | Job | Role(s) | Episodes |
