Bradley "Brad" Buttowski is one of the three secondary villains in My Little Pony: Rogue Murderer. He is the older brother of Kick "Clarence" Buttowski (Charlie Schlatter), and Brianna Buttowski (Grey DeLisle), and also the eldest son of Mr Buttowski (Brian Stepanek) and Mrs. Buttowski (Kari Wahlgren). He is voiced by Danny Cooksey, who also voiced Thaddeus in Phineas and Ferb (2007-2015), Montana Maxwell in Tiny Toons (1990-1995), and Dave in Dave the Barbarian (2004-2005)
Little is known of Bradley Buttowski before his first encountered with Fauntleroy Donaldson, but it is known that he was the leader of a group of bikers, and two of his members were Professor Bannister (Kevin McDonald) and Suzy Johnson.
Brad Buttowski, along with Professor Bannister and Suzy stops a small convenience store in Ponyville. Brad Buttowski and and Professor Bannister holds Pinkie Pie (Andrea Libman) hostage, while Suzy was making trouble for Rarity (Tabitha St. Germain). When she has Pinkie's thrown wallet, she wants Rarity to ask her nicely and politely for the wallet back and address her as "Ms. Johnson", so Rarity does. Professor Bannister and Bradley Buttowski let Pinkie go.
While she and Rarity get ready to leave, Brad Buttowski was outside in front of the drinking a bottle of jasmine tea as he sees Rarity and Pinkie inside the car. When Pinkie turns on the car, Brad Buttowski begins smashing the windshield of a car that Pinkie was drinking. However, Pinkie accidentally runs over their motorcycles as revenge for troubling her and Rarity, causing Brad Buttowski to fume and shout in anger while Rarity praises Pinkie as they drive away.
The three bikers stops at Sweet Apple Acres. Brad Buttowski goes to a barn across from Applejack's house and discovers Professor Bannister dead. When he sees Fauntleroy jumping down, he grabs a meat cleaver. Fauntleroy continues his scope out of the barn, only to have Brad Buttowski appear and starts attacking the sadistic killer with a meat cleaver. Fauntleroy counterattacks by hitting Brad Buttowski with a baseball bat. While Fauntleroy is trying to kill Applejack (Ashleigh Ball), she runs into the barn. She is suddenly met by Brad Buttowski, who survived the earlier fight. Fauntleroy angrily turns his attention to Brad Buttowski. Applejack continues running in fear as Bradley Buttowski screams in horror after Fauntleroy chops off his left hand and repeatedly hacked him to death with a meat cleaver. Brad Buttowski's one-handed corpse, along with the corpses of Professor Bannister and Suzy Johnson were found by the authorities and taken away by the paramedics (off-screen).