The Circus Freak Trio are a group of three mutated beings with extraordinary abillities.
They are first shown in Last Laugh where they are working for Zombozo. They act as preformers in his circus and help him drain the laughter of his audience. They are seen robbing a store in the episode and are confronted by Wildmutt, however Zombozo shows up to save them. Later when they are guarding the circus Upgrade shows up to attack them and succeffuly defeats all of them.