Kaio Kincaid (voiced by Stephanie Nadolny and Courtenay Taylor) is the protagonist of Cartoon Network's OK K.O.! Let's Be Heroes.  Kaio, more commonly known as K.O., is an optimistic boy who wants to become the world's greatest hero.  He works with his friends Enid Mettle and Radicles X at Gar's Hero Supply and Bodega.  K.O. wears a dark pink headband and matching wristbands, with lighter pink sleeves on his calves.  He also wears dark blue shorts, a white tank top, and a lighter blue vest, which is his work uniform.

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