The Fear Feaster is a creature that lives in Finn’s guts, living entirely on his fear of the ocean. It appears only in “Ocean of Fear”. It first appears when Finn realizes he is afraid of the ocean near the beginning of the episode, naming itself the manifestation of fear. Throughout the episode, the Fear Feaster taunts Finn for being afraid of the ocean, until Three Wise Men ride in on a Limo and tell Finn that everyone has a flaw. Fear Feaster is defeated, and Finn tells him that his flaw smells like Finn’s nasty guts.