Grant Gustin played the role of a superhero.
Grant Gustin . He is known for his role as Barry Allen / the Flash ( based on the DC Comics character of the same name ) on the CW series The Flash and Arrow , both in the Arrowverse television franchise , and his role as Sebastian Smythe on the Fox series Glee . The Flash (2014 TV series) . It is based on the DC Comics character Barry Allen / Flash , a costumed superhero crime-fighter with the power to move at superhuman speeds .