Black American film historian Donald Bogle considers Hernandez's early success in films during the early twentieth century to have been an event that paved the way for the high visibility and success ...

He is well-known for voicing Klaus in American Dad, the Clone Troopers in several Star Wars media, Ra's al Ghul in Batman: Arkham City, Momo and Appa in Avatar: The Last Airbender, Perry the Platypus ...