Libby Folfax is one of the four secondary protagonists of The Adventures of Jimmy Neutron Boy Genius.
She is Cindy Vortex's minion, assistant, and best friend.
She is also the love interest and eventual girlfriend for Sheen Estevez.
During the film, the first season, and temporarily in "Beach Party Mummy", Libby had a green dress with blue, light green, and orange patterned rectangles on it. She also had a streak of her hair covering her right eye along with her hair in a high bun. She also had green socks with black Mary Jane shoes. In "Beach Party Mummy" to make herself look like a queen in order to stop mummies, she got a corn row braid hair style that she likes and decides to keep. Later, she got new clothes: a fading pink striped shirt, blue jeans, and brown shoes.
Not much is known about Libby's family, but she is known to have a father and mother, In "Beach Party Mummy", she discovers that she is related to Queen Hasabataslapya of Egypt. She also has a little brother whose legs were seen in "Make room for Daddy-o" in the saw the lady in half trick.