Answer: Scabbers is Ron Weasley's pet rat, who once belonged to Ron's older brother, Percy. Ron claims he's useless because he sleeps all the time, though he did wake up to bite Gregory Goyle in Ron's defence on the Hogwarts Express.
Peter Pettigrew, also known by his nickname Wormtail, is a major antagonist in the Harry Potter franchise. He made his debut as the main antagonist of Prisoner of Azkaban, the secondary antagonist of Goblet of Fire, a minor antagonist in Half-Blood Prince, and a supporting antagonist in Deathly Hallows.
