Mark Waid (born March 21, 1962) is an Eisner Award-winning American comic book writer, known for his work on titles for DC Comics such as The Flash, Kingdom Come and Superman: Birthright, and for his work on Captain America for Marvel Comics. From August 2007 to December 2010, Waid served as Editor-in-Chief, and later, Chief Creative Officer of Boom! Studios, where he wrote titles such as Irredeemable, Incorruptible, and The Traveler.