Powers: Can control, and is protected from, flame. Inulnerable to bullets, because they melt on contact with his skin. Eventually, starting with the March 1941 issue of his book, he could simply transform his body into flame, like Marvel's Human Torch. He never, though, was shown as having the power of flight. Like Batman, he had "themed" vehicles: the Flame Boat, Flame Car and Flame Plane.
Bio: When Gary was a baby, his father Charteris Preston worked as a missionary in China. The elder Preston was washed away in a flood, but managed to save baby Gary by placing him in a basket. The basket was washed downstream to Tibet, where Gary was rescued by a group of lamas. They raised Gary in the lamasary, where they trained him in their mystical ways. Through this training, Gary obtained the ability to control fire and heat. He can raise his own body temperature to point where he can burst into flames, or melt bullets. He can control and direct any flame in his presence. He can also teleport from place to place by appearing inside of any fire source, no matter how small. The Flame's one weakness is water, which can severely weaken him. In order to provide fire whenever he needs it, the Flame carries a small, pistol-sized flame thrower.
Notes: Following Fox' s legal dispute with DC over their Wonderworld Comics cover star, a new hero was required to headline the title. The Flame became that star, and was, with the Blue Beetle and Samson, part of Fox's so-called "Big Three".
He is rather obviously a direct precursor to Marvel's Human Torch.