Theresa Keiner (who goes by her initials T. K.) is the younger sister of Harley Keiner. Unlike her brother, she does not bully anyone other than the people she purchases from.
Theresa Keiner still has a touch of her brother in her persona. In an episode, so finds interest in Cory, which leaves him in fear for Harley. She was ditched at a baseball game by her father on her 8th birthday
