Surprisingly, Grant Gustin was immediately likeable as the curiously brilliant Barry Allen. From his social awkwardness to a surprisingly flirtatious dynamic with Felicity, he’s so far removed from Oliver Queen that I can perfectly see him headlining his own show
Grant as an actor has brought more to Barry Allen than I think we’ve seen before, especially seeing him in the days of when he’s taking his first steps. But he’s got that heart. He’s got humor. He’s got a compassion. Barry was always a nice guy; he’s the guy that stops to make sure that everyone’s all right, and then keeps going, and Grant embodies that. He’s a perfect Flash.
Geoff Johns on why Grant was the best choice for Barry Allen (x