Sean is one of the comic book industry's top veteran artists, having started his career over a decade ago after being discovered by the legendary Barry Windsor-Smith. He began his career at Valiant Comics, penciling their flagship title, X-O Manowar, as well as Bloodshot, Harbinger, and Rai and the Future Force. His debut book, RFF#9, sold over 900,000 copies. 
After Valiant, he then moved on to Marvel Comics where he drew a memorable run on Iron Man for over three years, one of the longest modern day streaks for a monthly title. His other works included Wolverine, Elektra, and most recently the maxi-series X-Men:The End. Sean's run on Wolverine propelled him onto Wizard: The Guide to Comics top ten artists list while pushing the book into the top ten in sales each month. His next upcoming project is a run on Sensational Spiderman. 
He also lends his talents to Marvel's Creative Services Division where he contributes to style guides and licensing art, including box cover illustrations for the Iron Man video game and various promotional items such as lunchboxes, t-shirts and posters. 
Sean is a graduate of Carnegie Mellon University where he received a bachelors degree in industrial design. Aside from comic books, he applies his creative talents by designing furniture and home renovations, specializing in kitchens and molded concrete countertops. He has also started a new line of designer toys and figurines.