Ursula, also known as The Sea Witch or Vanessa in her human disguise, is the main antagonist of the 2023 musical fantasy film The Little Mermaid, the live-action remake of the 1989 animated feature film of the same name. She is a cecaelia sea witch who was banished by King Triton, her brother, from the aquatic kingdom of Atlantica. However, upon finding out that Princess Ariel, Triton's youngest daughter and her niece, is in love with a human prince named Eric, Ursula sees this as an opportunity to trick her niece into signing a deal with her to start a chain of events to overthrow Triton and take over the Seven Seas, putting everything Ariel knows in jeopardy. She is also based on her original incarnation of the same name as well as the Sea Witch and the Temple Maiden from the fairy tale The Little Mermaid by the late Hans Christian Andersen.