Blizzard is the name of different fictional characters appearing in American comic books published by Marvel Comics, who are primarily enemies of Iron Man.
The Donnie Gill incarnation has had the most appearances, appearing in several forms of animated media and video games as well as a live-action incarnation in the Marvel Cinematic Universe TV series Agents of S.H.I.E.L.D., portrayed by Dylan Minnette, though the Gregor Shapanka and Randy Macklin incarnations have also appeared in animation.