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.
Cypher (DC Comics)
As a professional corporate spy and mercenary, Cypher has the ability to hypnotize his victims into obeying his every command using his precise voice, an ability he often uses to force them to suicide. His voice can also be used to put his victims to sleep.
Cypher appears in the "Beware the Batman" episode "Control". In the series, he is portrayed as a cyborg member of the League of Assassins with the ability to attach cables, which come out of his arms, onto the base of people's skulls, allowing him to take full control of them as if they were puppets. Because he lacks the ability to speak, his 'puppets' must speak for him. Cypher is sent by Lady Shiva to kidnap Jason Burr in an attempt to gain control of a device called the Ion Cortex. He is eventually defeated by Batman, but some of his programming is left in Burr's mind. In the episode "Fall", a Cypher-controlled Jason Burr delivers the Ion Cortex to the League himself. When Burr is able to snap out of Cypher's control, his soul is drained from his body by Lady Shiva who wields the mystic Soultaker Sword. Cypher himself returns in the episode "Reckoning" where he is recruited by Ra's al Ghul to take down Batman alongside other villains of the series.