Mr. Costington

Mr. Costinton is the owner of Costington's, one of the largest upscale stores in Springfield. He is also unlocked upon complation of it, which was the last personal prize available in the prize system during the Christmas 2013 Event.

Simpsons Wiki Description
Mr. Costington is the chairman of Costington's department store, and Springfield Mall. Although he is usually generous, he can sometimes be insensitive.
 * Read the full article here at Simpsons Wiki.

Trivia

 * Mr. Costington is one of the few characters in the show who has eyebrows.