Bruiser is a Betelgeusisn Berserker Baboon and much like all of his kind scares the life out of Toads and enjoys beating them up. Bruiser is a space marine and the younger brother of Bruce, Bucky's former engineer who has obtained "oneness with the Aniverse" (died). Bruiser is large and slow witted but wholly well meaning. When he learned of his brother's fate he invited himself as part of the Bucky O'Hare's crew where he quickly became a very valuable member. He has developed a great deal of respect and a strong friendship with his brother's replacement, boy genius Willie DuWitt.