[1] Jeremy Renner portrays Clint Barton in the projects set in the Marvel Cinematic Universe.
[2] At the time when Clint Barton was temporarily deceased, Kate Bishop operated as Hawkeye as a member of the Young Avengers.
[14] During the "Onslaught Reborn" limited series, a pocket dimension created by Franklin Richards had one of its inhabitants being a version of Wolverine who operated as Hawkeye.
On one of the monitors of the Ultimates' hideout in the Stark/Stane satellite called the Triskelion, a man in a hoodie that is implied to be Clint Barton is walking away from a garbage can filled with Hawkeye equipment.
[16] The Hawkeye equipment was later claimed by a Native American named Charli Ramsey who used the arrows in their fight against Roxxon.