Lili Pauline Reinhart (born September 13, 1996) is an American actress. She is known for portraying Betty Cooper on The CW television series Riverdale. Reinhart was born and raised in Cleveland, Ohio. On February 9, 2016, Reinhart was cast as Betty Cooper, "sweet, studious, eager-to-please and wholesome with a huge crush on her longtime best friend, Archie" in The CW's teen drama series Riverdale. She grew up acting in community theater since the age of 12. Reinhart guest starred on the television series Law & Order: Special Victims Unit and starred in the films The Good Neighbor, Miss Stevens, Forever's End, Gibsonburg, The Kings of Summer, Not Waving But Drowning, and Lilith. Previously, Reinhart worked on the Fox sitcom Surviving Jack. On February 10, 2017, it was announced that Reinhart will star in Mélanie Laurent's upcoming film Galveston, alongside Ben Foster and Elle Fanning.