Gretchen Wieners is a fictional character from the 2004 film Mean Girls, which is based on the self-help book by Tina Fey. She is portrayed by actress Lacey Chabert and is known for being one of the popular girls at North Shore High School. Gretchen is characterized by her loyalty to her friend Regina George and her desire to fit in with the Plastics, the school's elite social group. Gretchen often struggles with her self-esteem and seeks validation from her peers. She is known for her catchphrase, "That is so fetch!" and her tendency to share gossip. Throughout the film, her character experiences growth as she learns to assert herself and navigate the complexities of high school social dynamics.