The movie had a number of horror host appearing in various scenes and as various non horror host characters:
Bobby Gammonster from "Monster Movie Night"
Jamie Lynn Mason: "Mistress Malicious" from "Mistress Peace Theatre"
(appearing as her horror host character)
Kate Holm: "Morgan Parker" from "Hexen Arcane"
Shanta Pasika: "Celeste Parker" from "Hexen Arcane"
Paul Gerard Kennedy: "The Professor" from "The Professor's Scary Movie Show"
Denise Behringer: "Witch Cinders" from "The Professor's Scary Movie Show"
Grace Liu: "Daioshi Cou Cou"
and
David Black: "Jiangshi" and "Count Funghoula" from "Horror House" & "Dramatica Diablos".