Clinton Francis "Clint" Barton, better known as Hawkeye, is a former special agent of S.H.I.E.L.D., where he worked under the supervision of Phil Coulson. Known for his use of the bow and arrow as his primary weapon, Barton became one of S.H.I.E.L.D.'s best agents and assisted in the recruitment of Black Widow, whom he developed a strong friendship with.
Real Name: Clinton Francis Barton
Date of Birth: January 7, 1971
Portrayed by: Jeremy Renner
1. The Avengers
Assigned by Director Nick Fury to watch over the Tesseract, he was brainwashed by Loki and used as a pawn for his evil schemes. However, following the Attack on the Helicarrier, he was freed from Loki's mental control by Black Widow and joined the Avengers to fight against Loki's alien army in the Battle of New York, ending the Chitauri Invasion before Barton returned to his work as an agent of S.H.I.E.L.D..
2. Avengers: Age of Ultron
Hawkeye continued to work for S.H.I.E.L.D. until its collapse following the HYDRA Uprising, he and the Avengers worked to bring down the final remnants of HYDRA, eventually capturing Baron Wolfgang von Strucker and ending the terrorist organization's threat to the world. However, Hawkeye was pulled back into the fight as Tony Stark had inadvertently used HYDRA as well as some Chitauri technology to create the psychotic artificial intelligence known as Ultron.
As Ultron tried to destroy the world, he allied himself with Pietro and the Wanda Maximoff and Barton focused much of his efforts in convincing them to change sides while keeping the Avengers safe by bringing them into his family home. During the Battle of Sokovia, Hawkeye's life was saved by Quicksilver's sacrifice, resulting in Barton swearing a debt to his sister and retiring from the Avengers to return to his family.
3. Captain America: Civil War
Despite living happily within retirement for a brief time, Barton was recruited by Captain America to aid him during his fight against the newly produced Sokovia Accords, which had forced Rogers that protect his friend Bucky Barnes from being arrested for a crime he did not commit.
Feeling he owed a debt to Rogers and Maximoff which he intended to repay, Hawkeye then joined in the Clash of the Avengers, fighting against Iron Man who was in support of the Accords. Despite putting up a good fight, Hawkeye and most of their team were eventually defeated and then briefly imprisoned at the Raft under the orders of Thaddeus Ross, only to be freed by Rogers and Barton returned back to retirement and after striking a deal with Ross was placed under house arrest as the strain of being a vigilante affected him and his family.