The queen in The Magicians is the Fairy Queen. She is a powerful and ancient being who rules over the Fairy Realm. The Fairy Queen is portrayed by Candis Cayne, a transgender actress known for her role in the television series Transparent.
The Fairy Queen plays a significant role in the series, often interacting with the main characters, Quentin Coldwater and his friends. Her appearances are usually marked by mystery and intrigue, and her motivations are often unclear.
While her role is primarily focused on the Fairy Realm, she sometimes interacts with the human world, often for her own purposes. She also has a unique relationship with magic, making her a mysterious and powerful character.