Robo Fizzarolli

He is a robotic entertainer at the knock-off theme park Loo Loo Land and Blitzo's rival and former co-worker. He is established as being a robot knockoff of the as of the famous jester demon, Fizzarolli. He also mentioned to have been shipped from a place called Big Ozzie's Factory, so it's presumed (and later confirmed) that there are more Robo Fizzes.