8) Notre Dame Fighting Irish
Hornswoggle, a.k.a. Little Bastard (real name Dylan Postl), was the maniacal leprechaun who would appear from his hiding space under the WWE wrestling ring and savagely attack anyone who was wrestling Irish wrestler Finlay. In true wrestling soap opera style, he was later revealed to be Vince McMahon's illegitimate son, and then Finlay's. Hornswoggle has actually had an impressive run in the WWE, though, becoming the first little person to win a WWE championship (the Cruiserweight belt). He's currently in DX.
6) Aqua Teen Hunger Force
5) Buffy the Vampire Slayer
They don't exist.
3) The Simpsons
The leprechaun on The Simpsons gets into all kinds of mischief, like dancing a jig on the head of the Simpsons' dog, Santa's Little Helper, and instigating a brawl with his orange-clad, Protestant, Northern Irish counterpart. But his most evil moment was appearing above the shoulder of the young, impressionable Ralph Wiggum and imploring him to, "Burn the house down. BURN THEM ALL!!!"
2) Lucky Charms
He might seem friendly enough, but the Lucky Charms leprechaun has been contributing to childhood obesity and dental bills for close to 50 years! He always keeps us entranced with the prospect of new marshmallow shapes, such as shooting stars, magic keys, and red balloons with stars on them. If only Lucky Charms weren't so magically delicious!
1) Leprechaun (and Its Sequels)
The last thing you would want to do (and quite possibly would ever do) is to steal any gold belonging to the serial murderer of fairy tale yore depicted in the Leprechaun movies. The little green slasher was played by Warwick Davis, who was probably getting out some pent-up aggression after being stuck in a Wicket the Ewok costume for the entirety of Return of the Jedi and after Willow flopped at the box office. In the original Leprechaun movie, the titular character faced off with a pre-Friends Jennifer Aniston, which we're sure she considers a shining star on her resume. The Leprechaun then soared to new heights in his murderous escapades (or lows, depending on your perspective) in the sequels, in which he ran amuck In Space and In the Hood, among other places. What helped make the Leprechaun so evil was the sheer joy and creativity he put into his kills. One that stands out is when, after being "killed" and pissed on by a space marine, the Leprechaun was reborn, bursting forth explosively from the marine's penis as the poor guy was about to get laid. The Leprechaun had some amusing weaknesses, too, such as four-leaf clovers and his obsessive need to shine shoes. Okay, so you wouldn't be able to stall Jason or Freddy from killing you by throwing your shoes at them, but I don't think I've seen either of them make a guy think he was kissing a woman's breasts when it was actually lawnmower blades, or grant a wish for a pot of gold by transporting it into a guy's belly.