Linda Edna Cardellini (born June 25, 1975) is an American actress. In television, she is known for her leading roles in the teen drama Freaks and Geeks (1999-2000), the medical drama ER (2003-09), the drama thriller Bloodline (2015-17), and the tragicomedy Dead to Me (2019-present), the latter of which earned her a nomination for the Primetime Emmy Award for Outstanding Lead Actress in a Comedy Series. She also guest starred in the period drama Mad Men (2013-15), for which she received a Primetime Emmy Award nomination. Her voice work includes the animated series Scooby-Doo! Mystery Incorporated (2010-13), Regular Show (2012-15), Gravity Falls (2012-16), and Sanjay and Craig (2013-16).

In film, Cardellini is best known for her portrayal of Velma Dinkley in Scooby-Doo (2002) and its sequel Scooby-Doo 2: Monsters Unleashed (2004), and her supporting roles in Legally Blonde (2001), Brokeback Mountain (2005), Grandma's Boy (2006), Kill the Irishman (2011), Avengers: Age of Ultron (2015), The Founder (2016), Green Book, A Simple Favor (both 2018), and Avengers: Endgame (2019). She also starred in the drama Return (2011), earning an Independent Spirit Award for Best Female Lead nomination, the comedies Daddy's Home (2015) and Daddy's Home 2 (2017), and the horror film The Curse of La Llorona (2019).

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