Clinton "Clint" Francis 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. Assigned by Nick Fury to watch over the Tesseract, he was brainwashed by Loki during the destruction of Project P.E.G.A.S.U.S. However, after 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.
He then continued to work for S.H.I.E.L.D. until its collapse, after which he and the Avengers worked to bring down the remnants of the terrorist group HYDRA and the psychotic artificial intelligence, Ultron. After the Ultron Offensive, Barton chose to leave the Avengers to return to his wife and children. However, he was soon recruited by Captain America to aid him in his fight against the Sokovia Accords. Barton was briefly imprisoned at the Raft, but was secretly freed by Rogers.
Powers and Stats
Tier: 9-B, possibly 9-A, higher with his best arrows
Name: Clinton "Clint" Francis Barton, Hawkeye
Origin: Marvel Cinematic Universe
Age: 45 in Captain America: Civil War
Attack Potency: At least Wall level, possibly Small Building level (Destroyed Ultron Sentries in close combat. Fought Black Widow to a standstill and hurt her. Held his own against Black Panther for a short time), likely higher with explosive arrows (Damaged the hellicarrier's engine area, blasting through a steel wall in the process)
Lifting Strength: Above Average Human
Striking Strength: At least Wall Class, possibly Small Building Class
Range: Extended melee range with his bow in staff form; Hundreds of meters with arrows
Intelligence: Skilled hand-to-hand combatant; Expert marksman with both bow and arrow, and guns; Skilled in espionage
Standard Equipment: Specialized recursive bow and trick arrows.
Weakness: Normal human weaknesses and can run out of arrows.