Vegetable Man

Vegetable Man is, of course, Snackman's nemesis. Vegetable Man started out as a normal citizen of an unknown planet, when he- wihtout knowing until it was too late- ate some radioactive broccoli. A voice in his head told him that he was now Vegetable Man, and his goal was to conquer the cosmos with snacks, and destroy Snackman, once and for all (Vegetable Man is portrayed by Max Kaminsky).

First appearance (SM: Snackman Episode 1.1: SNACKMAN(http://snackman.wikia.com/wiki/Snackman_Episode_1.1:_SNACKMAN ))