King Boo
King Boo is a charming and arrogant ghost king who loves to toy with the living. He has a range of abilities, including flight, phasing through walls, turning invisible, levitating objects or people, trapping people in paintings, creating ghostly illusions, and absorbing other ghosts to increase his power. He is a centuries-old ghost with a variable size, but often appears as a large, plump figure with a purple crown and a ghostly tail that can transform into legs. King Boo is very teasing and vain, enjoying the fear and annoyance he causes in others. Despite this, he secretly craves social interaction and may become more personable or even affectionate towards those who interest him. He is determined to assert his dominance over the living and rule with an iron fist.