Monster High is an animated web series based on the eponymous then-freshman American fashion doll line created by Mattel, the first adaptation since its launch, which originally aired on YouTube from May 5, 2010, to February 9, 2018.
[1] The series follows a group of teenage children of famous monsters in media and film who attend high school.
Along with its feature-length direct-to-video films, this series serves as a platform to launch new doll characters.
The mini-series premiered on YouTube on 5 May 2010 and ended in 2015 to make way for the release of the origin story film special, "Welcome to Monster High".
The series restarted on February 20, 2014, with new episodes, closer the release of the movie Frights, Camera, Action.