Zachary Zatara
Zachary Zatara is a fictional character in the DC Universe. Zachary is a descendant of the Homo Magi just like his cousin Zatanna and uncle John Zatara. He first appeared in "Teen Titans (vol. 3)" # 34, and was created by Geoff Johns and Tony Daniel.
Siren (DC Comics)
Siren was briefly seen during the attack on Zandia by Young Justice. In issue #50, Siren is the first obstacle the Young Justice must get by to actually land in Zandia. She tries to stop Lagoon Boy from crushing the coast of Zandia with a tidal wave by trying to hypnotize him and promising to make him "from a boy to a man". She is stopped by Jayna, one of the Wonder Twins. Her ultimate fate remains unknown.