Kristin Bauer van Straten is an American actress and producer, best known for her role as Maleficent in the television series Once Upon a Time. She has also appeared in various other TV shows and films, showcasing her versatility as an actress. In addition to her acting career, Bauer van Straten is an advocate for animal rights and environmental issues. She actively supports organizations that promote animal welfare and has used her platform to raise awareness about these important causes.