It was Paramount that spent a lot of work getting rid of the Hannah Barbara characters, specifically. Those came into Kings Island and Kings Dominion from licen

It was Paramount that spent a lot of work getting rid of the Hannah Barbara characters, specifically. Those came into Kings Island and Kings Dominion from licenses before Paramount bought them. Hannah Barbara is owned by Paramount rival media empire Warner Brothers these days. Paramount put all the work into replacing that with Nickelodeon characters (that they own). But yeah, when Paramount sold their accumulated parks to Cedar Fair apparently they didn't sell hardly any of the IP licenses (or Cedar Fair didn't want to pay for them). It maybe isn't too surprising that Cedar Fair themselves don't have a media empire for IP synergy and have to budget IP licenses instead. In high school, I worked a summer and a bit in food service at Kings Island back in the Paramount days.