The Fly (Archie Comics)
The Fly is a fictional character in the "The Mighty Crusaders" stories published by Archie Comics.
Tommy Troy was an orphan hired by Ben (aka Ezra) and Abigail March. Late one night, he tried wearing a ring with a fly-shaped emblem he found in their attic. The Marchs were wizards, and the ring summoned Turan, one of the Fly People.
Turan explained that, ages ago, the Fly People ruled the Earth. They used magic in their wars, in the ultimate one of which they reduced most of their population to common houseflies. Only a few Fly People managed to escape to another dimension, where they waited for "one person...pure of heart" to fight crime and greed, which were their own downfall. Tommy was that person. By rubbing the ring and saying "I wish I were the Fly," he exchanged the bodies with the other dimension and became a costumed adult superhero. To return to his own identity, all he had to do was utter his name.
Tommy fought crime in Capital City into his own adulthood. He also became a member of "The Mighty Crusaders," a superhero group that appeared in Archie Comics and Red Circle Comics.