Brenda is Pepper Ann Pearson's old best friend who first appears in "Old Best Friend" where she comes to visit Pepper Ann. The two spent lots of time together at Cubby Camp in the past, and PA is very excited that she is going to get to see Brenda again when she moves to Hazelnut.
However, P.A. quickly finds out that she and Brenda no longer have nothing in common, and tries her hardest to avoid having to say so. When she is about to tell her, Brenda interrupts by saying she knows they do not have anything in common and that she has new friends, leaving P.A. betrayed and heartbroken.