Winter Ops Hawkeye: Clint Barton is a former SHIELD agent and an expert marksman, specializing in archery. He and Black Widow have saved each other's lives multiple times, and remain close friends.
Sub-Ultron (Blue): Able to remotely operate multiple bodies in his campaign against humanity, Ultron strikes at his enemies through Sub-Ultron drones, each following his techno-supremacist commands.