Gizmo

Gizmo is an evil boy genius. He made his debut on Teen Titans Go! in the episode Laundry Day. He's voiced by Lauren Tom.

History
Gizmo, first appears in the episode Laundry Day, where he  made a robot army to take over Jump City,  but soon retrieved when he saw Robin nude and flew away with his robot army.

Appearence
Gizmo is obviously very short for his age. He is bald and his eyes have no pupils. He wears green goggles. His entire costume is a dark-green one-piece with shoes built in.

Powers and Abilities
Gizmo is a technological genius capable of creating ultra high-tech devices, ranging from jet packs to giant robots. His knowledge of computers and incredible hacking skills makes him a formidable foe for the Titans.

Trivia

 * In the original DC comics, Gizmo is a very short, middle aged man, instead of a young boy.
 * He is one of the rare people that did not change from the animated series. He looks almost exactly the same, even having the same voice actor.