Gembetz is a black thug who works for the Joker. He uses his Gentleman's club as a front for his criminal enterprise. He is normally seen with the Joker driving him around in his 2008 Maserati Quattroporte. Gembetz is the Bomb maker of Joker's crew and creates bombs for him to use. He also kidnapped Vicki Vale and straps a bomb to her which will go off in 13 minutes. Batman defuses the bomb and proceeds to break his neck killing him.