Wendy, Booboo and Georgy are a trio of ghosts and the main antagonists of the episode "Heat Signature" of Adventure Time.
They first appeared in the episode Heat Signature. They are a bunch of jerks who are Marceline's old friends. They trick Finn and Jake into thinking they are vampires. Later, they want to kill them by eating them.
Georgy is the possible leader of the group. He appears to be slightly darker than the others. He looks like a Pac-man ghost and is the shortest.
Wendy is the only female of the group. She appears to be slightly taller than Georgy and has big breasts.
Booboo is the tallest and possibly youngest of the group. He is a conjoined ghost and the skinniest. He appears to have a round head and a smaller one on top of his bigger one.