Justin Hammer is the C.E.O. of Hammer Industries. He is a business rival of Tony Stark and is an enemy of Stark's alter ego, Iron Man.
In the comics
- And the Sea Shall Give Up Its Dead
- Rejoice! I am Ultimo, Thy Deliverer
- Data In, Chaos Out
- Silence My Companion, Death My Destination
- The Grim Reaper Wears a Teflon Coat
- The Origin of the Mandarin
- The Defection of Hawkeye
- Iron Man to the Second Power, Part One
- Iron Man to the Second Power, Part Two
- The Origin of Iron Man, Part One
- The Origin of Iron Man, Part Two
- The Wedding of Iron Man
- The Beast Within
- The Armor Wars, Part One
- The Armor Wars, Part Two
- Justin Hammer was voiced by two different actors in Iron Man: The Animated Series.
- Tony Steedman voiced Justin Hammer in season one.
- Efrem Zimbalist Jr. voiced Justin Hammer in season two.