¿QUIÉN ERA CANCERBERO EN LA MITOLOGÍA GRIEGACerberus' hound is a mythical creature in Greek legends. Its portrayal often shows it as a multi-headed dog protecting the gates of Hades. In some myths, Cancerbero possesses three heads, while in others it can have up to nine heads. The word "cancerbero" is additionally used to refer to a ferocious and unrelenting protector.