Were you looking for the villain from the PvZ Room, Trip Hawkins?
HAWKINS is the current evil villain. He is an evil overlord who took over BRAINDOS. He has the ability to travel to other rooms via portals.
In the locked rooms
He attempts to transform the characters into killer robots. His lair is located at nearly every right turn (the reason that script wants everyone to turn right). He was killed by extreme acid while singing (in order to keep Me from using his power).