Lydia Deetz is a fictional character from the 1988 film Beetlejuice, directed by Tim Burton. She is portrayed by actress Winona Ryder and is known for her gothic style and fascination with the supernatural. Lydia is a teenager who moves into a haunted house with her family and becomes friends with the ghostly couple, Adam and Barbara Maitland. In the film, Lydia's character struggles with her family's lack of understanding and her desire for a deeper connection with the afterlife. Her unique personality and dark aesthetic make her a memorable figure in popular culture, often representing themes of individuality and acceptance.