Paul Dini is an Emmy Award-winning writer and producer best known for his work on Batman: The Animated Series , Batman Beyond , and the Batman: Arkham video games. Dini is also the co-creator of Harley Quinn and has written numerous acclaimed graphic novels for DC Comics. Alex Ross is a celebrated comic book artist renowned for his photorealistic painting style and iconic work on Kingdom Come , Marvels , and Justice . Ross's art has earned him multiple Eisner and Harvey Awards and a reputation as one of the most influential artists in modern comics.