Brittany-Ann is BG's next-door neighbor -- and her nemesis. Spoiled and pretty, Brittany-Ann thinks she's very special and loves to brag to BG and her friends about the latest toys and gadgets her parents bought her. Rivals and foes, BG and Brittany-Ann are always squaring off, challenging each other to bets, holding competing Halloween parties on the same day, calling each others' bluffs and trying to get the upper hand. Underneath Brittany-Ann's spoiled persona, we get glimpses of insecurity, but Brittany-Ann hides it well and her vain preoccupation with looks and possessions is in marked contrast to BG's tomboyish approach to life. Brittany-Ann is not generally invited up into the tree house with BG, Gad and Alex -- who mostly share BG's opinion of her -- so Brittany-Ann makes fun of it, and them, for playing in it.