Gretchen Mol is an American actress born on November 8, 1972. She rose to prominence in the late 1990s, appearing in notable films such as *Rounders* (1998), Woody Allen's *Celebrity* (1998), and *The Thirteenth Floor* (1999). Her career reached a significant turning point with the lead role in the biopic *The Notorious Bettie Page* (2005), for which she received critical acclaim and a Satellite Award nomination for Best Actress. On television, she is particularly known for her portrayal of Gillian Darmody in the HBO series *Boardwalk Empire* (2010-2014), a role that earned her, along with the rest of the cast, a Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Drama Series. Her filmography also includes titles such as *3:10 to Yuma* (2007) and *Manchester by the Sea* (2016). Also active in theater, she has demonstrated her versatility by performing in several Broadway productions.