Lili Pauline Reinhart is an American actress, best known for portraying Betty Cooper on The CW drama series Riverdale.
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.
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. 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.