Button-Bright, AKA Saladin Paracelsus de Lambertine Evagne von Smith, is a character in the Road to Oz and several other Oz books. He is the first American boy to emigrate to Oz. His real name is rather long, but he's called "Button-Bright" because he is as bright as a button - a felt button. He is often the main character in subplots that center around him getting lost and being found again. Buttonbright is also a character in the book Sky Island.
Read more about this topic: List Of Oz Characters