The Flash is the name of several superheroes appearing in American comic books published by DC Comics. Created by writer Gardner Fox and artist Harry Lampert, the original Flash first appeared in Flash Comics #1. Nicknamed "the Scarlet Speedster", all incarnations of the Flash possess "superspeed", which includes the ability to run, move, and think extremely fast, use superhuman reflexes, and seemingly violate certain laws of physics.

Bartholomew Henry "Bart" Allen II is a superhero appearing in American comic books published by DC Comics. A speedster, he first appeared under the alias Impulse and later became the second Kid Flash and the fourth Flash. Created by Mark Waid and Mike Wieringo, Bart first made a cameo in The Flash #91 in 1994 before his full debut in issue #92. He has since been featured as the lead character in Impulse (1995–2002) and The Flash: The Fastest Man Alive (2006–2007). Bart also appears in the series Young Justice and Teen Titans as a member of both superhero teams. In addition to the Teen Titans and Young Justice, Bart was a core character in 10 issues of Justice League of America under the mantle of the Flash.