Possession: Ghosts has the ability to possess other living creatures. While doing this, they maintains full control over his selected target, and can even speak through them.
Invisibility: They cannot be visibly perceived by other human beings. This is an automatic ability, and one that Ghosts has no control over.
Intangibility: They can pass through anything and everything. This is an automatic ability, and one that Ghosts also has no control over.
Flight/Dimensional Travel: They possesses the ability to fly between the lands of the living and the lands of the dead.
Power Limitation: The health and nature of whichever host body they are possessing at the moment may place certain physical limitations on their abilities.
This character or object is an adaptation of Ghost, a character or object in traditional stories. These include, but may not be limited to religious texts, myth, and/or folk lore. More information on the original can be found at Wikipedia.org.
Trivia
In the Arrowverse continuity, the H.I.V.E. field agents are referred to as Ghosts because of their elusive attitudes.[7]