Argentinean artist Sebastian Fiumara introduced himself to comics in 2003 working for Avatar Press in titles such as My Flesh is Cool, Youggoth Creatures and the adaptation of Alan Moore's novel Hypothetical Lizard. Then he worked on horror comics including Jason X, Friday the 13th and George Romero's Night of the Living Dead.
After a little collaboration at DC Comics, he moved to Marvel where he began drawing in projects as Marvel Illustrated: The Picture of Dorian Gray with Roy Thomas, and Orson Scott Card's Ender's Shadow: Battle School and Command School with writer Mike Carey. He also provided the covers for Ender in Exile.
He contributed to the X-Factor series with Peter David in issue 207 and he is currently working on a Loki miniseries with writer Roberto Aguirre Sacasa.