Barry Allen is a fictional superhero appearing in American comic books published by DC Comics. He is the second character to take on the mantle of the Flash, following the Golden Age hero Jay Garrick. The character was created by writer Robert Kanigher and penciler Carmine Infantino, making his debut in Showcase #4 in October 1956. Barry is a forensic scientist for the Central City Police Department who gains the power of superhuman speed after being struck by lightning and doused in chemicals in his laboratory.
Barry Allen's introduction is widely credited with launching the Silver Age of Comic Books, revitalizing the superhero genre after its post-World War II decline. His success led to a massive expansion of DC's roster of science fiction-oriented heroes and established the concept of the multiverse within DC Comics continuity. As the Flash, Barry is a founding member of the Justice League of America, cementing his place as one of the publisher's most iconic and enduring characters.
Over the decades, Barry Allen has been featured in countless comic book series, graphic novels, and crossover events. His personal life, including his marriage to Iris West and his relationships with fellow speedsters like Wally West and Jay Garrick, forms a rich supporting cast. The character was famously killed off during the Crisis on Infinite Earths event in 1985, remaining absent from regular continuity for over two decades before being resurrected in 2008's Final Crisis, returning to his role as the primary Flash.