Teresa Lisbon is a fictional character from the television series The Mentalist, which aired from 2008 to 2015. She is portrayed by actress Robin Tunney and serves as a senior agent in the California Bureau of Investigation. Teresa is known for her strong leadership skills and dedication to solving crimes, often working alongside the show's main character, Patrick Jane. Throughout the series, Teresa Lisbon is depicted as a no-nonsense professional who balances her work with personal challenges. Her character evolves as she navigates complex cases and her relationship with Patrick, showcasing her depth and resilience in the face of various obstacles.