Grant Gustin

Thomas Grant Gustin (born January 14, 1990), known professionally as Grant Gustin, is an American actor and singer. He portrayed Barry Allen in a guest starring role on Arrow, portrays the character in the eponymous lead role in the first season of The Flash, and as a special guest star in Vixen and an episode of Supergirl entitled "Worlds Finest". He also portrayed Hannibal Bates, as Barry Allen/The Flash, in the first season The Flash episode,. He will reprise the character in a special guest starring role in the first season of DC's Legends of Tomorrow.