Marvel's greatest superheroes have been assembled in the first animated direct-to-video movie. starring the voices of Justin Gross, Grey DeLisle, Michael Massee, Marc Worden, Olivia d'Abo, Nan McNamara, Nolan North, Andre Ware, David Boat, Fred Tatasciore, and James K. Ward. Curt Geda and Steven E. Gordon directs - Supervising Director/Producer: Bob Richardson - from the screenplay by Greg Johnson; Screenstory by Johnson, Boyd Kirkland & Craig Kyle; Based on the comic book story "The Ultimates", written by Mark Millar, artwork by Bryan Hitch; featuring Captain America. Executive Producers: Avi Arad, Ken Katsumoto, Craig Kyle and Eric S. Rollman; Co-Executive Producer: Stan Lee. from Marvel Entertainment.