Opinions on the CGI are split. Some reviewers found the visual design "terrific" and vibrant for its time, while others critiqued it as "iffy," "lifeless," or simply "average" compared to high-budget Pixar productions.
The cast is frequently praised, featuring talent like Dan Castellanetta and John DiMaggio. Reviewers noted that the vocal performances are strong even if the writing isn't always sharp. Parent & Fan Perspectives Review | Casper's Scare School | Blu-ray Authority Casper's Scare School
The premise involves Casper being sent to a school for monsters to learn how to be scary, where he instead uncovers an evil plot to take over the world. Some viewers found the narrative refreshing and interesting, while more critical reviews labeled it as "offensively bland" or predictable. Opinions on the CGI are split