Malchior

Malchior (voiced by Greg Ellis) is a ancient evil dragon and enemy of the Teen Titans. Malchior was defeated by wizard named Rorek and imprisoned within a book. Years later, Raven obtained the book and became fond of Malchior, who she thought was the wizard. He made Raven feel like she wasn't creepy and taught her a lot of spells, only to find out it was dark magic. With her help, Malchior was freed, and attacked the Teen Titans. But Raven imprisoned him back in the book.