Question: who does linda cardellini play in age of ultron
Answer: She is known for her roles as Lindsay Weir on Freaks and Geeks , Samantha Taggart on ER , Velma Dinkley in the live - action Scooby - Doo feature films , Sylvia Rosen , a neighbor of Don Draper 's on the AMC drama series Mad Men , Meg Rayburn on the Netflix original series Bloodline , Cassie in Brokeback Mountain , and Laura Barton in Avengers : Age of Ultron .