Justin Hammer

Justin Hammer is a fictional character appearing in American comic books published by Marvel Comics. He is typically portrayed as a wealthy industrialist and arms manufacturer, often serving as an antagonist to Tony Stark / Iron Man. Hammer is known for his technological expertise, ruthless business practices, and attempts to rival or defeat Iron Man through the development of advanced weaponry and robots.

In other media

In the Marvel Cinematic Universe (MCU), Justin Hammer appears in the film Iron Man 2 (2010), portrayed by actor Sam Rockwell. In the film, he is depicted as a rival arms dealer and businessman, involved in schemes that ultimately put him in conflict with Tony Stark.