While the core Monster High ghouls (like Frankie Stein, Draculaura, and Clawdeen) are present, the movie spotlights:
The film spawned:
Boo York, Boo York reinforced Monster High’s appeal by expanding its worldbuilding (introducing Boo York) and providing new character outfits, playsets, and doll lines tied to the film. It contributed to conversations in children’s media about modernizing traditions and emphasizing choice, packaged in an accessible, entertaining format.