11

11 is a member of the Aether Army created by Cynder Rush's friend at school.

Appearance
11 looks like a humanoid creeper wearing Steve's clothes. Sometimes he is depicted as having just a creeper's head or being half creeper.

Personality
I don't know how to describe it :P a bit like Templeton from Strange Hill High, really.

Trivia

 * It is unknown wheither he can explode or not.
 * He taught Lucythewerewolf about the Wither, beacons and fireworks.