The Inmates of Shadybrook Asylum are characters who recurringly appeared at Universal Orlando Resort's Halloween Horror Nights, event, mostly in the PsychoScareapy series of mazes. They are crazy, perverted, and psychopathic. They resided at the Shady Brook Rest Home and Insanitarium. They have first appeared at PsychoScareapy at Halloween Horror Nights 13, which was the obviously first part of the series and came out in 2003. Three years later, Jack the Clown was later revealed to be an inmate of Shady Brook Rest Home and Insanitarium during the events of PsychoScareapy: Maximum Madness, a maze at Halloween Horror Nights: Sweet 16 in Fall 2006.

           Halloween Horror Nights Villains

Main Icons
Bloody Mary | The Caretaker | Chance | The Director | Fear | Jack the Clown | Lady Luck | The Minister of Evil | Puppet Master | Evil Sisters | The Storyteller | Usher

Other characters
Bobby Galletta | Bubba | Carnage | Cindy Caine | Cutty | Doctor Dementia | Doctor Pennetti | Eddie Schmidt | Eel Mouth | High Priest | H.R. Bloodengutz | Inmates of Shadybrook Asylum | Knightmare | Meaty Meetz | Sam Meetz | Sweet Licks | Terra Queen | Tiny | Undertaker