John Paul Leon was born in New York City as the son of Cuban immigrants. He grew up in Miami, and attended the School of Visual Arts in Manhattan, where he majored in illustration. He has been working in comics since the early 1990s, and his first published work was a Dark Horse 'Robocop: Prime' mini-series. He then did 'Static' for Milestone, and is best known for his work on Marvel's 'Earth X' with Alex Ross. His other credits include 'Challengers of the Unknown', 'Batman', 'Smallville: The Comic', a 'X-men: Logan' one-shot, and a number of fill in issues for titles like 'New X-Men', 'Weapon X' and 'Tom Strong'.