Mammon is a rotund four-armed demon who embodies the sin of greed. He wears a three-eared jester cap adorned with small dollar signs, a jester's collar split between neon and dark green with yellow trim, and a two-layered jester outfit. His neon green eyes are masked, and his sharp green teeth frame a forked purple tongue striped with dark yellow. Despite his jovial stage persona, Mammon is deeply egotistical and cares only for profit, treating his brand face Fizzarolli like a son but also abusing him with dangerous stunts. He has a perfectionist streak and demands zero flaws in his image, though he shows rare flashes of genuine concern when things go wrong.