Harry the Bunny Master is an enemy that can be encountered in the agricultural center in Wasteland.
Before Matt Forrestal got the place cleaned up, Harry ran Ag Center pretty much all by himself. He had a whole bunch of killer rabbits. He'd chase off any Ranger that got near the facility, so it wasn't until he was shot up by Vargas' Ranger team that the people saw all the advanced tech and experimental crops he'd been hiding. Harry was definitely not right in the head. But, boy, was he strong.
It is unknown what led Harry to declare war on the farmers, but he succeeded in forcing them along with the old man and Miguel, taking over the fields with his flock of armored varmints.