Gill is a supporting character in the Disney/Pixar movie, Finding Nemo. He is the leader of the fish tank gang, who dreams of escaping the tank and going to the ocean. He is willing to put Nemo in danger in order to do so. However, he is still very nice to Nemo, and cares for him, and in the end, helps him escape back to the ocean without being killed by Darla.
Gill is voiced by Willam Dafoe.