Laura Barton
Laura Barton is a fictional character from the Marvel Comics universe. She is the wife of Clint Barton in the Ultimate Marvel reality. Laura had long known Clint Barton and had married him sometime prior to The Ultimates 2. Together they had three kids: Callum Barton, Lewis Barton and baby Nicole Barton. Clint would call them before every mission in case he never came back. Laura and their three children were killed when a traitor (later revealed to be Black Widow) sold them out to a black-ops team.
Laura Barton makes her live-action debut in the MCU movies Avengers: Age of Ultron (2015) and Avengers: Endgame (2019), and the Disney+ series Hawkeye (2021), portrayed by Linda Cardellini. She has three children with her husband (Cooper Barton, Lila Barton, and Nathaniel Pietro Barton).
Laura is introduced in Avengers: Age of Ultron, in which she provides Steve Rogers, Tony Stark, Natasha Romanoff, Bruce Banner, and Thor sanctuary at her and Clint’s home. Later, she greets Clint when he returns home.
In Avengers: Endgame, Laura disintegrated due to the Snap, but five years later, is restored to life. She reunites with Clint at their home, and later attends Stark's funeral.
In Hawkeye, Laura regularly contacts Clint to check up on him while he's in New York, partially aware of his dealings with the Tracksuit Mafia, who Clint made enemies of while he was Ronin. It is revealed she was an agent of S.H.I.E.L.D., but has since retired.