Greg Weisman is an American comic book and animation writer and producer, best known as the co-creator of Gargoyles and as the Supervising Producer of The Spectacular Spider-Man. Weisman also worked as producer on the Young Justice animated series. His first novel, Rain of the Ghosts was released on December 3, 2013. Its sequel, Spirits of Ash and Foam was released on July 8, 2014. Weisman is executive producer on the Star Wars Rebels animated series, alongside Dave Filoni and Simon Kinberg.