Butcher
Character
Butcher is a worm who appears in the episode "Pat the Dog." He is known to be very aggressive.
Description
He is a very large green worm with a black eye patch, pointy teeth, and a few tattoos.
Role in episode
Butcher is first "seen" in a cage, when Marvin mentions him when he tells SpongeBob that he better train Patrick, or he'll end up in a cage like Butcher. His cage also appears many times later in the episode. At the end of the episode, Marvin gives Butcher to Squidward in order to be trained, only for him to come out of Squidward's house, walking Squidward on a leash.