Jacques (Scooby-Doo)

&nbsp Jacques was a surprising antagonist in Scooby-Doo on Zombie Island. Originally represented as a genuinely friendly ferry driver, it was revealed that he tricked the gang into going to Moonscar Island. As Scooby and Shaggy were running from the zombies, it was revealed that Jacques was also a werecat. It was also revealed that he was aware that Lena Dupree and her daughter were draining the life sources of the former inhabinants of the island in order to preserve their immortality. He later asked for immortality, and they granted him it. That meant that he had absolutely no problem with having to kill others to preserve his immortality. Therefore, this makes him one of the most despicable antagonists to ever appear on Scooby-Doo. He was defeated, when the moon's shadow past the Harvest Moon, and he and the other werecats fall to pieces.