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.
Warlock of YS
Though he and his minions were defeated, the Warlock held the knowledge of Zatanna's father's whereabouts as a bargaining chip. The Warlock would reveal what he knew if Green Lantern would willingly give him the power ring without ordering the ring to capture him. Green Lantern agreed, against the wishes of Zatanna who reached out to stop the emerald warrior. Once he had the ring, the Warlock told them of the crystal ball and Zatara's disappearance. His part of the bargain complete, the Warlock ordered the ring to take him to Earth, only to find himself unable to move. Green Lantern had kept his word and given his power ring to the Warlock without any prior commands, but Zatanna had commanded it when she put her hand over Green Lantern's hand. The humans that had been brought to the Other Side of the World were grateful for their freedom from the Warlock. Though they were offered the chance to return to Earth they chose not to. They had left Earth many years ago and believed they had nothing to return to. In the Other Side of the World they would live forever. Green Lantern and Zatanna traveled back to Earth so the young magician could continue searching for her missing father.