Gizmo (Teen Titans Go!)

Gizmo is the leader of the H.I.V.E. Five and the main antagonist of Teen Titans Go!. He is a short, bratty little boy, who can invent a bunch of high-tech evil weapons.

Biography
Gizmo made his first appearance in "Laundry Day", where he was using his giant robot to destroy Jump City. Gizmo's evil scheme was to use this robot to take over the city. First and foremost, he approached the Titans Tower to take care of the Titans. Robin was completely naked at the time but he was still willing to fight and when Gizmo saw Robin confront him like this, he felt completely uncomfortable by Robin's nudity and immediately retreated in cowardness and never followed through with taking over Jump City.

Gizmo appeared alongside his teammates of The H.I.V.E. Five for the first time in "Super Robin", when he and the H.I.V.E. were robbing a bank. The Teen Titans showed up to stop them, and Gizmo fought mainly with Cyborg. Gizmo flew his jetpack up into the sky and attempted to blast Cyborg with a bunch of laser cannons. However, Cyborg simply shot one single missile at Gizmo, which was all that was needed to blow him up before he could fire a single shot. Gizmo dropped from the sky and crash-landed into the roof of a car, pathetically losing the fight.