Esther Levinson

Esther Levinson was a ghost of Alyson Levinson's aunt. She can't move on because she has some unfinished business. She seems to have a fear of Hades (the darkest realm of the dimension) because she doesn't want to get sent to there and that's why she doesn't like it here.

Biography
Esther is a ghost who haunts her only "children", Alyson, Aimee and Raelynn. She doesn't like getting sent to the dark dimension of Hades by the other villains because she rather live in Heaven. She still haunts the Levinson household and learns humans about their past. She is invisible to most people, expect the other main protagonists of the show.

Powers

 * Flight - She can fly (most likely float) at high speeds like most ghosts do. In known episodes, she could float around as fast as she could. And she can also use her ghostly genie-like tail to fly around.
 * Intangibility - She is able to float through walls and phase through solid matter like most ghosts do. She also phases through people. In some episodes, she phases from the ceilings, floors, walls and humans. She also can't grab everything and that's why she is intangible.
 * Invisibility - She can turn invisible like most ghosts do. In some episodes, she turned invisible to make objects move around and fly around to scare her opponents off. She can also use invisibility to hide from villains.
 * Telekinesis - She uses telekinesis like (or unlike) most ghosts do. She can telekinetically lift up things and people, make things float around and move objects with her mind.
 * Teleportation - She teleports like most ghosts do. She can teleport from place to place. She is allowed to use teleportation that's because she can teleport to Heaven.
 * Possession - She possesses people like most ghosts do. She can even possess her opponents. Everytime she gets out of the opponent's body, the other villains scream revealing that she's a ghost and runs off.

Quotes

 * "I'm a ghost and nobody can see or hear me!"
 * "You could see me and hear me? I'm a ghost!"
 * "I can't go to Hades, it's like the Underworld to me. It's too scary, I can't go..."
 * "Rippen, you can't do this! I am not the only one who can go to Hades!" -Esther confronting Esther
 * "This makes no sense to me!"
 * "HEY TIRIEL! HEY SORATH! LEAVE MARCO DIAZ ALONE!" -Esther teaching Tiriel and Sorath a lesson
 * "Looks like you will get your first taste on your just desserts..."

Trivia

 * She has a fear of Hades, the dark dimension.