|Appeared in||Ghostbusters-The Ransom Of Eddie Spenser|
Thunder Ghosts were made by Prime Evil to use in a plot to flood the world. They appear to not be all that powerful, but Prime Evil made so many of them that there were too many to get rid of them by normal means. The Dematerializer Net was made to get the ghosts in large numbers.
The creatures appear to be rude nasty spirits that love bringing on a rainy day.