Rook Blonko (Ben 10 UAF)

Rook comes from a gentle species called Revonnahganders. Rook is extremely athletic and nimble. He wields his weapon of choice, the Protol-Tool, with deadly accuracy and became one of the best Plumbers there is. He has a wealth of galactic knowledge, but his by-the-book approach to situation does not always bring the best results. Rook still has a lot to learn - but he also has a lot to teach Ben.