Kevin 11,000

'''""Ben 10,000, meet Kevin 11,000!""

- - Kevin 11,000 before fighting Ben 10,000. '''

Kevin 11,000 is an alternate, more evil, version of Kevin Levin.

As Kevin Levin
Kevin is now about 32 years older (Around 43-years-old) than his first appearance. Since then a lot has change. For one his hair is longer and reaches to his chest, and has a scar shaped like an X on his chin.

As Kevin 11,000
Kevin's monster form also changes as well. Kevin 11,000 still has some of his previous, like one of Four-Arms' arm and feet, Stinkfly's wings, Greymatter's right eye, XLR8's tail, Ripjaw's teeth, Heatblast's fire, Wildmutt's arms, and Upgrade's skin. But there are still other body part such as the Null Void Guardian's tenticles.

Personality
In this version, Kevin is more insane than ever and more powerful than ever. His determination to be better than Ben Tennyson has made him more crazy. He goes so far as to trick his own son so he can prove he's the best.

Ken 10
In the distant future, in an alternate timeline, Kevin has been trapped in the Null Void for about 32 years. While he was there, Kevin had been absorbing other aliens to aquire their powers. During one of his breakouts Kevin had a son named Devlin. He tricked his own son into believing that he's reformed and that he want to "Spend some time with his son," and that all he had to do was to open the Null Void Projector. After Devlin tricked Ken Tennyson into showing him were the Null Void Projector was, Devlin opened the projector, releasing Kevin. When Ben found out, Kevin showed his true form. Kevin proved to be more than a match for both Ben, and Ken. When Devlin found out that he was tricked by his own father, Devlin decided to team up with the Tennyson and fight his father. Eventually Ken tossed a Null Void Bomb and trapped Kevin inside the bomb, and presumably sending him back to the Null Void.