Row 2 title = Ocupation
He is voiced by Liam O'Brien.
R.Z. was once a human scientist named Richard Zimmer. He lived with his son, Warren (who would become Wild Card), and his robotic assistant, Side Kick (who would become Drop Kick). Dr. Zimmer spent most of his lifetime studying the Core and ignored his son putting a strain on their relationship. Some years during the Super Bowl, Dr. Zimmer hid the shards of the Core in his son to make him the first Gaurdian. But Side Kick sabitaged the project. Shards of the Core were scattered and Dr. Zimmer lost his life. But Zimmer's essence became merged with a computer and became R.Z.6.0.