Gûlavhar, the Terror of Arnor was an evil hero. It is unknown if he is a member of the balrog race.

Gûlavhar is a being from an earlier time that should have perished long ago - a winged demon with a hunger for blood. How he came to survive the terrible wars against Morgoth will never be known, yet survive he did, sleeping through countless centuries. Despite his bestial appearance, Gûlavhar is a creature of malign and subtle cunning - a true terror in the night to those who stray into his domain.