Gracia Ul Naga Saillune, commonly known as Naga the Serpent, is a recurring character in the Slayers series. She is a powerful and flamboyant sorceress with a signature loud laugh and over-the-top personality. As the estranged daughter of Prince Philionel of Saillune and the older sister of Amelia, Naga is both a skilled magic user and a comic foil. Her interactions with Lina Inverse add humor and complexity to the series, making her a memorable figure.