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Whenever you have a problem, you call me. And then, I put one of those uniforms and I crawl out the window, and I go and I knock on your front door! And then I do whatever you need me to do! See, see, I didn't have a problem with you people living here, I liked you! That's why I gave you the house, and we wouldn't have problems if... if you followed the one simple rule, just: DON'T OPEN THE DOOR! You just had to NOT open the door, but you did, and here we are!
~ Does Bad Things Guy telling Mario.
Where's my saw?
~ Does Bad Things Guy's last words before getting shot in the head by his brother.

Does Bad Things Guy is Brooklyn T. Guy's only identical brother who filled in for him for 7 months until May 10th, 2017 in SuperMarioLogan's YouTube's videos (particually The Secret Door!).

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 WinkleThe Loan Dolphin and Nancy


Early life

It is unknown about Does Bad Things Guy's past. Along with his twin Brooklyn T. Guy, he has a thirteen non-identical brothers; Does Good Things Guy, This Guy, What Guy, A Guy, Chicago Guy, Manhattan Guy, San Francisco Guy, Las Vegas Guy, Philadelphia Guy, Frank, and Family Guy.

Killing spree

Well, yeah, you see, see, it started with my wife, and then some new people moved in, and I told them not to open the door, but what did they do? THEY WENT AND OPENED IT, SO I HAD TO KILL THEM AND THEN, PEOPLE JUST KEEP OPENING THE DOOR!!
~ Does Bad Things Guy about his killing spree.

Does Bad Things Guy killing a woman with a chainsaw while Mario calls him.

Does Bad Things Guy murdered his wife for unknown reasons. Then, some new people moved into his house, and Does Bad Things Guy told them not to open the secret door. However, they opened the door, so he had to kill them. He also took pictures of their dead bodies. At some point, he murdered an unnamed man at Thanksgiving by frying him in an electric chair.

The New House!

Mario and Does Bad Things Guy

Mario, Rosalina, Jeffy, Bowser, Chef Pee Pee, and Bowser Junior now are staying at a "Holiday Inn" hotel. Does Bad Things Guy (posing as the Brooklyn Guy), knocks the door and tells Mario and Bowser that he found a new house for them. Mario, Rosalina, and Bowser while Chef Pee Pee stays at the Holiday Inn hotel to watch Bowser Junior and Jeffy. Mario, Rosalina, Bowser think that house is beautiful. Does Bad Things Guy informs them that twenty-five people where murdered inside the house and find the skeleton of the twenty-sixth murdered person. They decide to take a look inside and they find it to be amazing. Does Bad Things Guy shows them the dining room and they say that the love it. Does Bad Things Guy then shows them the kitchen, which Bowser thinks Chef Pee Pee will love, and the living room.

Mario notices that the house has two stories. Does Bad Things Guy calls Mario an "idiot" for not paying attention to that fact and tells them to look up the second floor. They go upstairs and see a balcony view to living room. They check out another room and Does Bad Things Guy tells them that nobody should open the secret door. He shows them the game room, which Bowser thinks Junior will love while Rosalina finds that Jeffy will love. He shows them a red bedroom with a Television which they find it to be pretty good. Bowser punches Mario, tells everyone of the room so he can watch "Charleyyy & Friends", and slams the door into them. Does Bad Things Guy asks Mario and Rosalina about their opinions on the house, which they respond by saying that they loved it and Does Bad Things Guy leaves.

Before The Secret Door!

In Pinch! Pinch! Pinch!, when Junior starts pinching Cody for not wearing green because it's St. Patrick's Day, Does Bad Things Guy (posing as a cop and his brother) stops the fight. However, Junior starts pinching him for not wearing green, so Does Bad Things Guy takes his glock and shoots at Junior.

At the end of Bowser Junior's Big Spill!, he is heard saying "I told you not to open that".

The Secret Door!

While Mario, Rosalina, and Jeffy play a game of hide and seek, Jeffy tries to look for a place to hide, but heard knocking. He finds the secret door, opens it, and enters inside it. When Jeffy's loud scream is heard, Mario and Rosalina decide to find out what's going on. Horrified by finding the dead bodies residing in the room the door led to, Mario, Rosalina, and Jeffy decide to call the cops. So, Does Bad Things Guy (posing as the Brooklyn Guy) arrives. When Mario and Rosalina show him the dead bodies, he knocks them out with a mallet as the screen fades to black.


Does Bad Things Guy's true sadistic nature.

Mario and Rosalina wake up chained up and scream "What's going on?". Does Bad Things Guy responds by saying that he'll be there with them in a minute and says that a female victim of his was impatient as he was hacking one of his victim's intestines. He tells them about a guy who wouldn't stop making noise and shows them his corpse. Because of Mario, Rosalina, and Jeffy opening the door, Does Bad Things Guy cuts one of his victims' chest with a saw and hits Rosalina with a hammer. He also takes a picture of the victim's chest and cuts another of his victims' jaw with a kitchen knife. He reveals to Mario that he takes uniforms, crawls out the Windows,knocks on the front door and does whatever Mario needs him to do. He says to him that they wouldn't had any problems if he followed the one simple rule: NOT opening the Secret Door.


Does Bad Things Guy's last moments before being shot by his brother.

He decides to kill them, starting with Rosalina who he calls "Loud mouth". He says "Where's my saw?" before being shot in the head by his only-identical brother Brooklyn T. Guy with a Glock 17.

Brooklyn T. Guy unchains Mario, Rosalina, and Jeffy and informs that he went on vacation for seven months, so he filled Does Bad Things Guy.

Other appearances in non SML series

Despite his death, he appeared in A Project Guy as he mentioned that someone revived him by The Past Machine and he kidnaps Bowser Junior, Joseph and Cody, impersonates Brooklyn T. Guy and steals a bike.


  • 1: His Wife
  • 2-26: 25 Unnamed people
  • 27: Unnamed man at Thanksgiving-Not one of his normal victims.
  • 28: Bowser Junior in Pinch! Pinch! Pinch!. Note: Not canon.

In total, Does Bad Things Guy murdered twenty-eight people both canon and non-canon.





  • He was the second SML character to fill in for another character, the first one is Robot Chef Pee Pee.
  • He was likely inspired by Jeffrey Dahmer.


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