Brenda is the oldest daughter and child of the Aarons family. Brenda's not very clever or responsible as much as Ellie is and doesn't spend much time with Jess. When she tells Jess that Leslie is dead she almost seems to take pleasure in it, but her dad tells her to be quiet. Previously in the book she'd made fun of Leslie for wearing boys' clothes and not acting feminine enough and in the 2007 film, she teased Jess after he befriended Leslie calling him "Weird and Weirder."
She is portrayed by Devon Wood.