Muscle Man, a lso known as Mitch Sorrenstein is the party crazed, topless park manager. He appears on a later episode on the Adventure Time Crossover. He is friends with High Five Ghost, a weird looking ghost with a five - fingered hand. Retrieved from "http://theamazingworldofgumballfanfic.wikia.com/wiki/Muscle_Man?oldid=9584" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.