That's nice. I got confused because someone, you, skipped Q and R.
Anyway,
Necromancer, FF III.
Printable View
Lich, Final Fantasy
Kefka (Final Fantasy VI)
Juggler, Chrono Trigger
https://vignette.wikia.nocookie.net/...20110821135824
Heckran, Chrono Trigger
Gond (Vanguard)
Likely the easiest "boss" in video game history.
Fire Dragon (Final Fantasy VI, one of the 8 Legendary Dragons)
Eggman (Sonic, also known as Dr. Robotnik)