The Flash, particularly embodied by Barry Allen, is a DC Comics superhero known for super speed gained through a chemical accident. Barry, a forensic scientist, maintains a dual life with a secret identity. A key member of the Justice League, he wears an iconic red costume and faces a rogues’ gallery of villains. The Flash’s adventures often involve time travel and explore the concept of a multiverse. Barry Allen’s legacy extends to other characters, such as Wally West and Jay Garrick, who have taken up the mantle. Adapted into various media, the character is portrayed by Grant Gustin in The CW’s Arrowverse.