Meg Masters is a fictional character from the television series Supernatural. She is portrayed as a demon who initially appears in Season 1, where she manipulates and deceives the main characters, Sam and Dean Winchester. Meg is known for her cunning personality and her ability to possess humans, making her a formidable antagonist. In the series, Meg's character evolves, and she becomes more complex as the story progresses. She is portrayed by actress Nicki Aycox in her first appearances and later by Ruth Connell. Meg's interactions with the Winchesters highlight themes of good versus evil and the struggle for redemption.