Robert Venditti is the New York Times best-selling author of The Homeland Directive and the sci-fi graphic novel series The Surrogates, the first installment of which was adapted into a feature film starring Bruce Willis and Ving Rhames. He also writes the graphic novel adaptations of Rick Riordan's bestselling Percy Jackson and the Olympians novels. His most recent projects include X-O Manowar, Hal Jordan and the Green Lantern Corps and The Flash.

Author Biography: Greg Pak is a filmmaker and comic book writer best known for directing the award-winning feature film "Robot Stories" and writing the epic "Planet Hulk" and "World War Hulk" storylines for Marvel Comics.

He was named one of 25 Filmmakers to Watch by Filmmaker Magazine, described as "a talent with a future" by the New York Times, and named "Breakout Talent" of the year by Wizard Magazine. Pak's run on Marvel's "Incredible Hulk" comic book included the much lauded "Planet Hulk" and "World War Hulk" epics and was named the Best Ongoing Series of 2007 by Wizard Magazine.

Pak created the character of Amadeus Cho, who won a 2005 Marvel.com fan favorite poll, and has written numerous Marvel miniseries, including the top-selling "X-Men- Phoenix - Endsong" and the critically acclaimed "Magneto Testament." Pak also wrote the "Battlestar Galactica" series for Dynamite and co-writes the fan favorite "Incredible Hercules" series with Fred Van Lente.