Sock Lee (リーソックス, Sokku Rī) is the impostor of Rock Lee.
Sock Lee wanted to become a ninja, but had no talent for ninjutsu. He didn't have any friends that he could train with, or a master that could teach him. One day, he knew Rock Lee, who became a ninja without knowing ninjutsu, and counted with friends and a master. That made him jealous and started making bad things disguised as Lee. His personality changed upon being defeated and recognized by Lee.
Sock Lee has linear (round when opened), black eyes and thick eyebrows (thinner than Lee's). His hair has a bowl-cut fashion. He has thick, red lips. He also has some wrinkles in each side of his face. Almost all his physical characteristics resemble Rock Lee's, since he was introduced as his impostor.