Was a stunt motorcyclist and amateur mystic. Blaze Allan's trailor had little room for living amongst the mystical artifacts he collected through the years. He spurned Night Spectre's desire for a human pawn. Night Spectre was attracted to Blaze's powerful, yet innate, arcane abilities. Night Spectre asked for his services in the Soul of Power race. Blaze refused, cast the Night Spectre out. It was this recklessness that cost him the loss of his beloved Iris Simpson.
Now, when Blaze Allen chants the ancient words "Gone, gone o’ form of man, arise the demon Etrigan," he is mystically transformed into a flaming demon from Hades. Cutting a deal with the evil sorcerer Merlin to save the soul of his beloved Iris Simpson, Allen became cursed with the vengeful demon’s spirit.
Now, Speed Demon rockets to all corners of the Earth, incinerating evildoers in Hellfire to complete the unholy bargain - win a race against rival demon Night Spectre and be the first to collect 6,666 souls. The Speed Demon’s lair contains momentos of past battles including his epic defeat of the alien creature Doomsday.
When he sought out Hal Jordan in Gotham City, he believed he had killed Uatu, and followed on to kill Jordan.
The nephew of Blaze Allen, Wally West performed with his uncle at the Quentin Carnival. When Wally discovered his uncle's secret indentity, the evil sorceror Merlin bonded his soul to a demon so that he could assist his uncle in the battle against Night Spectre and his minions.