Katy Kangaroo, also known by her nickname "K.O. Katy", is a caring mother kangaroo with impeccable boxing skills, acts to ensure the well-being of her son Joey and handles those simians the "Monkeybiz Gang" that antagonize her. Aside from punching back projectiles with her boxing gloves she dons, Katy also demonstrates the ability to use her tail like a baseball bat. She has brown and light brown fur, blue eyes, and wears a blue bow around her neck. She's quick to react to any threats.