Mark Waid has written for every major comic publisher, including DC Comics, Marvel Comics, Archie, Dark Horse, Image, and Top Cow. His credits include Batman/Superman: World's Finest, JLA, and 52 for DC, as well as Daredevil, X-Men, and Fantastic Four for Marvel. He is best known for his long and influential run as writer on the monthly adventures of The Flash and for his work with artist Alex Ross on the acclaimed, best-selling epic Kingdom Come.