Chum is a supporting character in Disney•Pixar's 2003 animated feature film Finding Nemo. He is a very hyperactive mako shark who is part of the Fish-Friendly Sharks support group. He, for fishing reasons, has a hook lodged in his snout. According to the movie, he hates dolphins as much as Anchor. Apparently, he ate his "friend" in the group, whom Marlin momentarily replaced.