Duncan Rouleau is an American comic book writer and artist, and is a part of the Man of Action Studios collective of creators (along with Joe Casey, Joe Kelly and Steven T. Seagle), who created the series Ben 10, that aired on Cartoon Network.
Justice League World's Greatest Heroes (JLA Cartoon)
When Superman, Batman and Wonder Woman could not stop a threat alone, the worlds heroes from street level and meta human joined forces to create a new league to combat the threats no hero could face alone.
