Eduardo Risso is an Argentine comics artist. In the United States he is best known for his work with writer Brian Azzarello on the Vertigo title 100 Bullets, while in Argentina and Europe he is noted for his collaborations with Ricardo Barreiro and Carlos Trillo. He has received much acclaim for his work.

Brian Azzarello is an American comic book writer and screenwriter who first came to prominence with the hardboiled crime series 100 Bullets, published by DC Comics' mature-audience imprint Vertigo. Azzarello is best known for his numerous collaborations with artists Eduardo Risso and Lee Bermejo, his contributions to the Watchmen prequel project Before Watchmen and The Dark Knight Returns sequel series DK III: The Master Race, as well as for his stints on the long-running Vertigo series Hellblazer and The New 52 relaunch of the Wonder Woman title.