Hal Stark is a millionaire and the founder of Stark Aircraft. He was working on a stationary flight simulator when the device suddenly took off with him in it. Stark discovered that the flight simulator was being drawn to a crashed alien spacecraft, and the flight simulator crashed yards away from it. Stark was badly injured by shards of metal stuck in his chest. Curious to the end, Stark made his way to the alien spacecraft, where he came upon the dying alien Rhomann Sur. The alien died before he could speak with Hal, and Hal realized he was dying as well. With his last efforts, Stark designed a suit of armor out of the alien technology, powered by a battery he found in the wreckage, one which reminded him of a lantern. The suit of armor not only allowed him to survive, but gave him incredible powers, allowing him to create any object he pleased out of a green energy, due to the battery he used being powered by Oa the Living Planet. He battled and defeated the aliens that had shot down Rhomann Sur's spacecraft.
Stark, under the name of the Iron Lantern, became a superhero, fighting against numerous enemies such as Madame Sapphire, Great White, and his arch nemesis Mandarinestro, who is behind the series of events that creates Madame Sapphire, who in turn resurrects the Great White android. Hal Stark has also been associated with the Green Guardsman, who once took over for Iron Lantern, and later came back to steal the Iron Lantern's alien battery so he could be a hero again. Other foes that Iron Lantern has faced include Dr. Whiplash and H.E.C.T.O.R..
In Showcase of Suspense #29, Hal traveled into the year 5700. In this far-off future, there is another Iron Lantern known as Arno Manning, who Hal Stark temporarily took the identity of in his travels. In addition to the Iron Lantern's connections to Arno Manning and the Green Guardsman, Hal Stark is also somehow connected to the Golden Age superhero the Human Lantern in ways that have not yet been revealed.
- Genius Level Intellect: Apart from the powers granted to him by his suit, Stark is an inventive genius, constantly creating new technology and looking for ways to improve it.
- Charisma: He is well-respected in the business world, able to command people's attentions when he speaks on economic matters. He is known for the loyalty he from and returns to those who work for him, as well as impeccable business ethics.
- Iron Lantern Suit: Iron Lantern wears armor that can generate a variety of effects, such as:
- 1 Appearances of Harold Stark (Amalgam Universe)
- 6 Images featuring Harold Stark (Amalgam Universe)
- Quotations by or about Harold Stark (Amalgam Universe)
- Character Gallery: Harold Stark (Amalgam Universe)