Darth Plagueis (concept art)

The topic of this article is non-canon and not part of the Star Wars universe, being an unused concept. Darth Plagueis is a character who is mentioned in Revenge of the Sith. Despite later being revealed to be a Muun, Plagueis was originally intended to be a Neimoidian.

Biography
Darth Plagueis was a powerful Sith Lord, who was capable of using the Force to create life. He was able to master many abilities from the Dark Side and discovered a way to cheat death. However, he taught his apprentice, Darth Sidious, everything he knew and Sidious killed him in his sleep.