Xavier is tall and lean, with light brown hair and eyes and olive skin.
He wears a grey elegant suit complete with a grey hat, a dark grey waistcoat decorated with a square pattern, a white shirt, a big teal bow tie, and brown sandals worn with white socks. He also has a bird call whistle on a string hanging from his neck.
Mr. Pigeon wears a full body skin-tight suit with black forearms, waist and thighs, dark grey belly, light grey chest, shoulder and biceps, and pink shins and head. He also becomes noticeably more muscular. The suit also has black stripes on his triceps and around his upper hips, along with two parallelogram-shaped light blue spots where his bow tie was. The bird call whistle is still around his neck.
Mr. Pigeon is similar in appearance to his regular outfit with some exceptions. He has bulgy blue eyes, eyebrows that stick out of his head, and an exposed forehead. His suit has a blue oval on the front below each shoulder, and on his behind and upper legs, there is a vertically stretched dark gray hexagon with a light gray outline. He also became more muscular.