Jim Moriarty is
Jealous of John for being do close to Sherlock
Is a psychopath not a sociopath
Moran, Sebastian Moran is his sidekick
Mad, just a tad, well maybe a bit more than a tad
Original, I mean he broke in to the bank of England just to prove a point
Rude but he wouldn't be Moriarty if he wasn't
Is a consulting criminal, the only one in the world
Accent, I love his accent it's amazing
Rogue, like Sherlock no one can catch him but they try
Terrifying and troublesome
Yearning for something to do, like Sherlock you don't want to see him board