STEP UP 4
RYAN GUZMAN and KATHRYN McCORMICK star STEP UP 4
© 2011 Summit Entertainment, LLC. All rights reserved.
Robert Greenberger
Robert Greenberger is best known to comics fans as the editor of Who's Who In The DC Universe, Suicide Squad, and Doom Patrol. He's written and edited several Star Trek novels and is the author of The Essential Batman Encyclopedia. He's known for his work as an editor for Comics Scene, Starlog, and Weekly World News, as well as holding executive positions at both Marvel Comics and DC Comics.
