Clayton Barton (Earth-2326)

"I'm not a superhero, ma'am, this is my job. Your thanks really isn't necessary."

- Hawkeye

Clay Barton was a special operative working for S.H.I.E.L.D. who was assigned to hunt down Nick Fury after he went dark and started recruiting the Avengers. He was partnered with the Black Widow, and the two of them eventually discovered that the Avengers were fighting to prevent the Kree-Skrull War from decimating the Earth.

Trivia

 * When S.H.I.E.L.D. found Clay, he was training to compete as an Olympic archer.
 * Clay's younger sister, Laura Barton, is also an Agent of S.H.I.E.L.D. However, their brother, Barney, is a drunken slob who has spent years in jail for assault and grand theft auto. Clay was the one who arrested him.