Monster High (web series)

The American fashion doll franchise "Monster High", created by Mattel, was adapted into an animated web series released on YouTube. The series follows a group of teenage characters who are the children of famous monsters in media and film as they attend high school. Along with its feature-length direct-to-video films, the animated series serves as a platform to launch new doll characters. The web series finished its first run in 2015 with Volume 6, and began a reboot run with the "Adventures of the Ghoul Squad" series. 186 webisodes of "Monster High" were produced.
Development.
The original Monster High dolls were created by Garrett Sander, with illustrations by Kellee Riley and illustrator Glen Hanson. The characters are inspired by monster movies, sci-fi horror, thriller fiction, and various other creatures.
The Flash-animated material was produced by WildBrain during 2010-2012 and is produced by 6 Point Harness since 2013, though Top Drawn Animation has been continuously hired by both companies for supportive work after it took over from Caboom. Meanwhile, the CGI-animated material was produced by Nerd Corps Entertainment and DHX Media until Great Scarrier Reef. Sound for the entire series is done by Salami Studios. The new CGI-animated material was produced by Flaunt Productions.
Release.
The "Monster High" webisodes premiered on YouTube on May 5, 2010. Episodes were added weekly on Fridays.
The cartoon finished its first run in 2015 with Volume 6, and began its reboot run with the "Adventures of the Ghoul Squad" series.
Episodes.
Volume 4 (2013–14).
Volume 4 went on hiatus after the fifth episode, "Scream Spirit", due to episodes of Volume 3 & 4 airing in the wrong order. The series restarted on February 20, 2014 with new episodes, closer the release of the movie "Frights, Camera, Action".
Volume 5 (2014–15).
On October 2, a Volume 5 webisode was uploaded onto YouTube. Much like Volume 4, Volume 5 seems to have started before the previous volume has come to its end. Notable changes in Volume 5 so far are an increased running time, and a slight improvement in the animation itself, such as more varied facial expressions, and the exterior of Monster High's main building changing to look more like the school as seen in the movie specials.
Volume 6 (2015).
On June 19, 2015, Volume 6 webisodes were uploaded onto YouTube. Volume 6 seems to carry on the new changes made in Volume 5, including multiple-part webisodes. Volume 6 is also the final season for the Generation 1 Monster High Webisodes.
"Adventures of the Ghoul Squad" (2018–2019).
On August 11, 2017, Mattel released ten episodes of a new rebooted series on the YouTube Kids, "Monster High: Adventures of the Ghoul Squad", following on from the films, "Welcome to Monster High" and "Monster High: Electrified". The series also debuted on KidsClick in the United States along with "", on September 24, 2018.