Captain Underpants Doctor Diaper Coloring Pages
Doctor Diaper (or Dr. Niko Nappy in UK versions of the Captain Underpants books) is the primary antagonist in The Adventures of Captain Underpants, whose plan is to blow up the moon with the Lasermatic 2000. Doing this would result in giant chunks of the moon crashing down on Earth, crushing every major city. This chaos would allow him to take over the planet. He is voiced by Len Forgione in the Sound-O-Rama Audiobooks.