Does Bad Things Guy is a major antagonist in SuperMarioLogan's YouTube's videos, serving as the main antagonist of The Secret Door!. He is Brooklyn T. Guy's only identical brother who filled in for him for 7 months until May 10th, 2017. He was voiced by Chris Netherton, also known as Pablo Sanchez, who also voiced his brother, Brooklyn T. Guy, Cody, Bully Bill, Craig the Devil, David Winkle, The Loan Dolphin, Nancy and Makes Bad Decisions Guy. He was thought to be an anti-hero ever since The New House!, but he was actually one of the main antagonists in Season 8 and 9. He was the secondary antagonist for the last 17 episodes of Season 8, and the main antagonist of the first 33 episodes of Season 9 until Mr. Goodman became the main antagonist of the series. He was also the main antagonist of his final appearance, The Secret Door!, in which he was revealed to be a villain all along.