Tatiana Gabrielle Hobson is an American actress. She is known for her roles as Gaia on The CW science fiction television series The 100, Prudence on the Netflix original series Chilling Adventures of Sabrina, and Marienne Bellamy on the Netflix series You. She also provided the voice of Willow Park on the Disney animated series The Owl House, and played Jo Braddock in the 2022 movie Uncharted and Hannah Kim on the Netflix series Kaleidoscope.