Bartholomew Henry "Barry" Allen, also known as The Flash, is a fictional character in the DC Extended Universe. Based on the DC Comics superhero of the same name, he is portrayed by American actor Ezra Miller. The Flash makes his first cinematic appearance in Batman v Superman: Dawn of Justice before having a more prominent role in Justice League, and its director's cut. Miller has also reprised the role in other DC Comics media such as the Arrowverse and a cameo in the HBO Max series Peacemaker and is currently slated to star in The Flash, an upcoming film based on the character. The DC Extended Universe marks the first time The Flash has been portrayed in live-action film.