He played the charismatic Patrick in The Perks of Being a Wallfower alongside Emma Watson. His other notable roles include Vinnie in City Island and Leon Dupuis in Madame Bovary.
He played a brief role in the television comedy, Calfornication.
He was in the film We Need to Talk About Kevin, alongside Tilda Swinton.
He sang opera music when he was six years old. After years of honing his skills, he sang in Philip Glass's opera, White Raven.
He is the son of a managing director at Hyperion publishing and Workman publishing. His father Robert served as the senior VP of Disney's adult book publishing house.
- The meaning of the name Miller: Mill Worker