John M. Wellnuts first appeared in Brain Drain where Yang used him get to the Woo foo dojo; then, His second apperence wass in Gone-A-Fowl where he turned into a monster and attacked Yang whom tore off all his fur and made a suit out of it. Retrieved from "http://yinyangyo.wikia.com/wiki/John_M._Wellnuts?oldid=8559" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.