Professor Waltom is tall, bald, dark blue, reptilian koala/bear-like experiment with a crocodile-like teeth, and a roundly body reminiscent of Batman supervillain Penguin who is obese, humanoid version of Stitch with the same abilities, but he is villain more intelligient than Stitch. He wears a hat, monocle, and a dark gray pinstripe suit with a military badge. He is the main antagonist of two films. He is a evil scientist and galaxy conqueror who carries a steel tomahawk axe formed as pimp cane, a Bergmann-Bayard pistol, a dagger, a plasma gun, a sickle, and a military crossbow, and flies in a flying fortress, later in a balloon aircraft and a heliocoptor. His minions were a gas masked experiments, and a tank-like experiments. His personality is similar to Clavius, Dr. Phillium Benedict,