10K is quiet and observant, when he does talk, it's usually about what's happening. Hes good with a sniper rifle, and is pretty good with a knife. He loves killing zombies, and keeps track of each one he kills. Ten thousand kills is his goal (hence his self given nickname), and is already over one thousand kills by his first appearance. In his brief story line, 10K was forced to kill his father, making a promise to him that he would stay strong and fight. He first revealed his name to Doc that after ten thousand kills, that he would go by a self given name Jeff. His real name was later revealed in the Season 1 finale to be Tommy.