Mister. E later known as Mister. F is a ninjdroid who was apart of the biker gang known as Sons of Garmadon. He would later meet his end by Garmadon himself by using him as an example that failure would not be tolerant to his underlings. He would later be rebuild as Mister. F serving the Crystal King.
The Multiverse Empire[]
He would later be rebuilded a second time again as Mister. F by the Empire