Bailey Briggs is Spider-Man's forgotten sidekick Spider-Boy. He is one of the newest additions to the Spider-Family - and one of the most interesting. Having never been bitten by a radioactive spider, Bailey has an origin that is more akin to that of Wolverine than Peter Parker, as he is the result of unethical experimentation. Nonetheless, the young Briggs has already managed to make a decent name for himself in the Marvel Universe and has quickly become a fan favorite addition to the rapidly expanding mythos of one of the world's most iconic superheroes.
Source：https://www.cbr.com/spider-boy-rogues-gallery-marvel/
