Buck is a male feline gootraxian, who has grey fur and a black underbelly. Black stripes run along their arms and legs and they sport purple horns and spines, which emit a faint, purple glow when in low-light environments.
He WAS a Catte, (orange cat-like gootraxian) before he tried switching out his orange bucket for the black one he now wears. He forgot everything he learned as a Catte; now being hostile towards gootraxes, and somewhat inviting to humans. He's often shy around new people, too.