Ghost

A ghost is a soul, a manifestation or a ghostly spirit of or a spectral entity that represents a dead person or an animal that can appear, in visible form or other manifestation, to the living.

Biography
Ghosts are the souls or spirits of deceased humans or animals. They are referred as "dead people", "haunters", "ghostly spirits" or "lost souls". Some humans, who didn't have the power of Mediumship, can't see ghosts because they are invisible and unheard once. They are already dead. People (or humans) who have the power of Mediumship, whom are called Spirit Sighters, can see ghosts too.

Personality
Ghosts are shown to have different personalities when they are alive. For example, friendly ghosts have a friendly personality so they can be friends to humans. They also have displayed forms of kindness like making friends, baking cookies for humans and hugging, which (unfortunately) frighten other living people and might think that they have been touched or saw a floating object like it was picked up by invisible hands.

Appearance
Ghosts have ghostly pale white skin which fades to transparent and silver eyes. In their appearance, they appeared to have a wispy tail as "legs". They looked like when they are alive, except they glow ghostly white vapors and fade to transparent as well. They wear the same clothes they died in. Their hair color and clothes rendered wispy shades of grey.

Powers & Abilities
* = notable
 * Invisibility* - Ghosts can turn invisible and can be unseen. When the lights have been turned off, they disappear.
 * Teleportation - Ghosts can teleport from place to place.
 * Telekinesis* - They move objects, animals and people with its mind.
 * Intangibility* - They can pass through physical matter.
 * Possession - They can possess people.
 * Object Possession - They possess objects.
 * Flight* - They could hover in thin air.
 * Poltergeization - Ghosts are allow to turn other people and animals into ghosts, by possessing people's bodies.
 * Shapeshifting - Ghosts can shapeshift into a form of a wispy ball of light or can turn their legs into a ghostly, wispy tail.
 * Corporealization - Ghosts can disguise as humans.
 * Puffing Up/Body Fattening - They can puff up their bodies to make them look fatter. For example, an opera singer ghost named Lauri Daaé possesses her victim, causing the victim to vocalize like a soprano, puff up its body and float about, causing to be turned into the opera singer ghost.
 * Bulging - It can bulge through solid matter instead of passing or phasing through. For example, they scare people by using their hefty build to make the walls and doors bulge and stretch.
 * Umbrageous Teleportation - Boogeyman ghosts can teleport using shadow powers and travel in the shadows.
 * Darkness Manipulation - Boogeyman ghosts can manipulate shadows.
 * Darkness Aura - Boogeyman ghosts can surround in the shadows, emanating in a dark black aura.
 * Shadow Camouflage - Boogeyman ghosts can turn invisible in the shadows.
 * Cloud Mimicry - Ghosts can turn into mist.
 * Light Mimicry - Ghosts can turn into a wispy ball of light.
 * Wisp Summoning - Ghosts can summon wispy balls of light.
 * Astral Manipulation - Ghosts can manipulate astral energy.
 * Inaudibility - They can turn inaudible.
 * Inodorosity - They can lack odor.
 * Self-Sustenance - They can reduce or remove the need for bodily necessities.
 * Hypnosis - They can hypnotize people.
 * Imperceptibility - Ghosts are completely undetectable and imperceptible.
 * Illusive Appearance - They can create an illusive appearance.
 * Semi-Immortality - Ghosts never age.
 * Malleable Anatomy - They can morph their faces.
 * Non-Physical Interaction - Ghosts are allowed to interact with other spirits.
 * Tangibility Interplay - While intangible, ghosts interact with the tangible.
 * Portal Manipulation - They can control portals.
 * Phantasm Manipulation - They can control other spirits.
 * Reality Warping - They can manipulate, control or warp reality at their own will.

Known Ghosts

 * Jeannie Sullivan
 * Tara Maclay
 * Anya Jenkins
 * Johnathan Levinson
 * Jenny Calendar
 * Joyce Summers
 * Annie Boleyn
 * Helen McHaunt
 * Abigail Rition
 * Samuel Spook

Tropes

 * Bad*ss Army: There's an army of World War II-era soldier ghosts who are killed by the Japan, which they called "Japs" right before they died.
 * Barred from the Afterlife: Ghosts can't enter Heaven or the Underground of Darkness because they have a problem crossing over, have unfinished business or are lost and/or lonely.
 * Berserk Button: Friendly ghosts turn angry when you are mean to them.
 * Beware The Nice Ones: See Berserk Button.
 * Crazy Prepared:
 * Cute Ghost Girl: [Mostly] female ones.
 * Demonic Possession: Not actually demonic, but instead it was known as ghostly possession.
 * Electromagnetic Ghosts: Their presence causes lights to flicker, television sets to turn static and radios to crackle.
 * Fog Feet: They have spectral tails to hover without using their legs.
 * Friendly Ghost
 * Ghostly Goals: Some want revenge, others have unfinished business.
 * Glamour Failure: With the human disguise, it can either by invisible to humans, cold skin or lack of pulse.
 * Invisible to Normals: Not only that ghosts are invisible to those who never knew who they are, but they are also visible to those who are not only psychic mediums, but the ghosts' friends, family members, and people who ghosts knew when they are alive. For example, Helen McHaunt is invisible to people who never knew her, seeing how she is visible to those who she knows when they're alive: her parents, friends, acquaintances, favorite teachers, and family members.
 * Jacob Marley Apparel: Ghosts wear the same clothes they died in, mostly wearing the same clothes before or after they died.
 * Missing Reflection
 * Orifice Invasion: Possessing people by shoving down their throats.
 * Our Ghosts Are Different: Some ghosts are spirits who are anchored to the same place they died in, others are lost, sad and lonely spirits who can't cross over into the afterlife because they have unfinished business.
 * Silly Spook
 * Transformation of the Possessed: Mostly their shapeshifting.
 * Unfinished Business: The reason why they come back, refuse to move on or are lost and/or lonely.
 * Vengeful Ghost: They come back to get revenge on people who killed them.