Maddie (マディー, Maddie) is a jōnin-level kunoichi of Konohagakure. She is the great granddaughter of Hashirama Senju (The First Hokage), and granddaughter of Tsunade (The Fifth Hokage.)
In the beginning of part I, she was an immature joker who loved to play pranks on people. She didn't think things out until she did them, and she didn't care what other people thought of her because she thought everyone liked her. Her power and skill made her even more popular until Sasuke Uchiha showed up. All her friends left her to follow Sasuke around. She felt like the whole world turned against her to go to some loser. She never really knew that her friends were fake, until that very day. Her loneliness was getting over her and she became more distant. One day she was walking to the training grounds to train, when she ran into Sasuke. All he wanted to do was talk to her, about his feelings, and his past. He told her everything that was on his mind, and she understood. They were still acquaintances, but they knew a little more about each other. Later on she started acting more like herself and getting some friends back, when she started having some feelings for Naruto. They weren't loving feelings, but respectful feelings, like he was the one to look up to for advice and answers. He thought she was crazy, but nice to say that about him. As their friendship deepened so did her feelings for him but she would never let him know that. She'd cover it up with laughter or anger.