Nevar (Regular) Nageswara Rao (The Secret Temple): A mysterious figure who wears a black-hooded cloak and an iron mask, introduced in the second series and described as the enemy of all that is good and true, and Raven's arch enemy.
In Raven: The Secret Temple, Nevar followed Raven to a mysterious land far to the east after putting a dark spell on Raven's homeland and leaving it in a icy grip, frozen in his terror.