All Supernatural beings, though mainly Witches and Doppelgängers
Aikaterina Simon Roxane Perikles
The four 'originals' who are responsible for creating ALL Supernatural creatures
"They are the four. The Originals. Some would even call them the origin of all evil. Right now, their descendants, their shadows walk the face of the Earth. And, with the Doppelgänger's help, they will return themselves."