Beetlejuice

Intro Betelgeuse was an incredibly powerful poltergeist who was also a troublemaker. He went off on his own as a freelance "bio-exorcist", claiming he could get rid of the living; got into more trouble. The only way he can be brought back from and sent back to the Neitherworld is by calling his name three times. When the Titans summoned him in "Ghost With the Most" to save the Halloween Spirit, he feigned his alliance with them, until he kicked them into a dimension and revealed his true nature on desiring to take over Halloween. Although he initially had an upper hand against the Titans after they escaped from the dimension, he was trounced after Raven summoned a sandworm to swallow him. He ended up having his head shrunken by Trigon, who punished him for not paying his debt.