He is a student at Jefferson County Middle School and is in the same class as Milo Murphy, Melissa Chase and Zack Underwood. He acts as Milo's rival and is jealous of the attention he gets whenever something disastrous happens to him, due to Milo being jinxed.
Bradley is first seen at a bus stop with his classmates and new student Zack Underwood waiting on the school bus. When Milo appears, Bradley and his classmates step away from him, but Zack stays where he is, unaware of Milo being jinxed. Bradley along with his classmates and Melissa Chase go onto the school bus whilst Milo and Zack are chased by a runaway concrete pipe.
During the bus journey to school, Melissa makes bets with Bradley and the other students on if Milo and Zack will make it to school before the bell rings. When they arrive in class, Bradley believes that he will win the bet as the bell is about to ring and Milo and Zack are nowhere to be seen. However, Milo and Zack, having been earlier captured by aliens, are beamed down into class just as the bell rings, much to the shock of Bradley.
Bradley, along with the rest of the class, takes part in an experiment to build a container to place an egg in and drop it from a height and the winner would be the one whose egg doesn't break.
On the day of the experiment, Bradley drops his egg container and the egg only gets a scratch, making Bradley the first winner. Milo and Zack drop their container "Big Bertha", which is knocked away by a truck and bounces around town, before coming back to the school. The egg is undamaged, making Milo and Zack the winners.
At the school's gym during practice for the school's football team The Geckos, Bradley wishes to sit next to Melissa, but changes his mind when he notices Milo sitting next to her.
Bradley is later seen attending the game between the Geckos and the Tigers, where he tries to convince Melissa to sit next to him and the other students, but she turns the offer down and remains sitting next to Milo.
Bradley and the rest of his class go on the subway on a school trip to a museum. During the journey, the carriage Milo, Melissa and Zack are riding, detaches from the rest of the train, whilst Bradley and the other students look on.
At the museum, Bradley tries to enjoy all the time of a Milo-free zone. At the end of the episode, Bradley and Mort get trapped in a dinosaur ribcage after Milo, Melissa and Zack arrive at the museum via crashing through one of the walls with the subway cart.
- Bradley is voiced by Vincent Martella, who previously voiced Phineas Flynn in Phineas and Ferb. Coincidentally, both Phineas and Ferb and Milo Murphy's Law take place in the same universe.
- Ironically, Bradley is the opposite of Phineas - while Phineas is an optimist, Bradley is more of a pessimist.