Real name: Johnny Warren First appearance: Robin #121 A cruel enforcer working for mob boss Henry Aquista in Gotham City, Johnny Warren became fused with a demonic artifact, gaining tremendous power but also losing a certain amount of self control. He gained the ability to suck the life out of people and many other powers. Warlock quickly broke Stephanie's leg, and was about to kill her when Tim began beating him savagely. Johnny fell apart, and Tim freaked out, thinking he killed him, but in reality Warlock has just burned out of juice, and resurfaced later.