Linda Edna Cardellini (born June 25, 1975) is an American actress and voice actress. She is known for playing Lindsay Weir on Freaks and Geeks (1999–2000), Samantha Taggart on ER (2003–09) and Meg Rayburn on Bloodline (2015–17). She received an Emmy Award nomination for her portrayal of Sylvia Rosen on Mad Men (2013–15).
Cardellini is also known for her portrayals of Velma Dinkley in the Scooby-Doo live-action film series (2002–04), Cassie in Brokeback Mountain (2005), and Laura Barton in Avengers: Age of Ultron (2015). She received an Independent Spirit nomination for her performance in Return (2011).
Cardellini's voice work includes the animated television series' Regular Show (2012–15), Gravity Falls (2012–16), and Sanjay and Craig (2013–16).