Barry Allen appears in 2030 issues.
After being doused in chemicals and the being struck by lightning, forensic scientist, Barry Allen, was granted the gift of super speed. Barry then became The Flash, the fastest man alive. Drawing his energy from the Speed Force, Barry protects the citizens of his hometown Central City, and is also a founding member of the Justice League. Barry is a key part to his Universe because after changing the time stream for the worst he saved it and changed things back to the way they were more or less.