He is a supporter of the Arsenal Football Club.
His name Asa means 'wing' in Portuguese.
Has worked twice with Ben Kingsley in the movies Hugo and Ender's Game.
He developed an iPad app called "Racing Blind" together with his father and brother. It is the only game available on the app store that is meant to be played with the eyes closed.
Son of Jacqueline Farr and Sam Butterfield.