Merlock (voiced by Christopher Lloyd) is the main antagonist of Jaden's Adventures of Ducktales the Movie: Treasure of the Lost Lamp. He is an evil old sorcerer who once possessed a lamp with a genie in it until it was stolen from him. He has a magic talisman that gives him all his powers. When he puts it on the lamp, he gets unlimited wishes. Merlock set out to retrieve the lamp again, until Scrooge and Jaden found it. Merlock took it from them and was using it for evil purposes again. In the end of the film, Merlock lost his talisman and appears to die after falling from his floating castle.
- Merlock will return in Jeffrey, Jaden & Friends' Storm Adventures of Pokemon: Jirachi Wish Maker in an attempt to use Jirachi as his new wish-granter.