Rook in the art picture. Rook is a Maximal gunner and Brawn's brother. Like Brawn, It is unrelated to his G1 character. His beast mode is a Koala Bear. Gallery[edit | edit source] Rook in beast mode.Add a photo to this gallery Retrieved from "https://beastwarstransformers.fandom.com/wiki/Rook_(BW)?oldid=31999" Categories: Maximals Beast Warriors Beast Wars E.N.D.A.N.G.E.R.E.D. Maximals Koala Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.