Hexus!

Although he seems a bit wacky throughout the
movie and definitely has the sweet-transvestite
thing going with his voice (mmmm I love Tim 
Curry), I think this cel shows off his true
nature... an absolute BadA$$ !!!  This is when
he remorts to his true form and starts 
destroying everything, and flames are his
interior...

*very* evil laugh here!!!!

Kim ^.^
aka Lady Zatara