5. Mankind
Mankind, one of the many personalities of Mick Foley, was his most crazy and mentally deranged one. He shrieked during his matches, seemed to enjoy pain a lot, hid behind a mask, and even hurt himself by pulling his hair. At one point, he made himself a little companion, a sock he wears over his right hand and which he even makes talk to others; Mr. Socko.
4. Papa Shango
Representing the Loa Baron Samedi, Papa Shango was WWF's very own voodoo priest. Like many of his creepy colleagues, he controlled the arena lights and turned up embraced by smoke. Later in his career, he could even cast spells that would make his opponents feel immense pain or throw up in the middle of the ring.
3. Boogeyman
The Boogeyman was coming to get you! With a creepy demeanor and appearance and rather striking dominance in the ring (at least at the beginning), the Boogeyman was known for one thing in particular: his worms. Mouth to mouth, he liked to feed them to his defeated opponents or anybody else who wasn't fast enough to escape.
2. Kane
The Big Red Monster, The Devil's Favorite Demon, brother of The Undertaker; especially in his masked times (and way before Team Hell No), and during his See no Evil times, Kane was a shocker and a real threat to any in ring competitor. Crazy? Maniac? A rising demon? Or just a confused soul?
1. The Undertaker
For generations of wrestling fans, The Undertaker is wrestling! His unique entrance, his creepy eye rolling, and his Tombstone finishing moves are what wrestling nightmares are made of. He buried his opponents in caskets, he lead an order, he tried to sacrifice Stephanie McMahon, and his Wrestlemania streak is, till today, not broken!