"Miller first took the stage as a child, singing opera at Lincoln Center and with the Metropolitan Opera. After their first first feature film, 2008's 'Afterschool,' Miller appeared on a number of television series, including 'Californication' and 'Royal Pains'. They drew critical praise for their portrayal as the homicidal son of Tilda Swinton's character in the 2011 thriller 'We Need to Talk about Kevin'. Miller has received wide acclaim for their roles in 'The Perks of Being a Wallflower' and 'Fantastic Beasts and Where to Find Them'. Now, they have been set to reprise their role as superfast superhero Flash in the character's upcoming standalone film." — Forbes