Scorpan is a Gargoyle that once lived in the Midnight Palace. He's the son to Queen Haydon and King Vorak, and is Tirek's brother.
History
He joined Tirek in Tirek's mission to invade Equestria and take over the land, but when Tirek became imprisoned, he left the kingdom and returned home to the Midnight Palace, informing Vorak and Haydon of what had occurred.
Very little is known about him. It's only hinted upon that he's deceased prior to the series.