Eden was born in Old Harlow, Essex. He attended the Sylvia Young Theatre School. He played Nibs in the 2003 film Peter Pan, and the Artful Dodger in Roman Polanski's Oliver Twist. He was inspired by Lionel Bart's Oliver! and the role of the Artful Dodger. He said that he prefers acting in a challenging role and that he would not like to be Harry Potter, even though he loves the films.