From Wikipedia, the free encyclopedia. Bailee Madison (born October 15, 1999) is an American actress. She is most famous for her role in the 2007 film adaption of Katherine Paterson's Newbery Medal-winning novel Bridge to Terabithia in which she plays May Belle Aarons, the younger sister of Jesse Aarons. She films a webshow with her baby-sitter and fellow actress, Samantha Droke. Her elder sister, Kaitlin Riley, is also an actress.