Jonnie Cringe: Jonnie Cage - Sunglasses-wearing Hollywood director/actor who, depsite the fact that he does all his own stunts, is still a pretentious git. Bleah.
Cane-O: Kano - Some kind of Cornish pirate-dude who "finishes" people by ripping their hearts out. Arrr.
Xenen: Raiden (also "Rayden") - A luminescently blue-eyed, conical-hat-wearing God Of Thunder who enjoys flying headlong at his enemies while yodelling. Really.
Louie Kangaroo: Liu Kang - Jackie Chan couldn't make it, so they called this guy in instead. Whatever.
Dr. Scorpion: Scorpion - Fire-Ninja who yells "Get over here" and harpoons people, and "finishes them" by pulling off his mask and breathing fire all over the hapless victim. Yumminess.
Sub Hero: Sub Zero - Ice-Ninja who freezes his opponents so that they fall over and shatter. Cool.
Sonya the Hedgehog: Sonya Blade - Token female. She shoots pretty, pink power-rings at her opponents. Cute.
Doro: Goro - A four-armed, half-man-half-dragon monster. Yikes.
Shang Tongue: Shang Tsung - Wise old oriental sage... WHO KICKS BUTT FOR EVIL! Yee-haw!
The Stunt Ninja: Reptile - Green Ninja who keeps randomly popping into the game and giving obscure hints on how to find him and kick his irritating ass. Laiceps!