Chak Del Gatto

Chak (or "Check") is Hinterkaifex member #18 who briefly appears in a flashback during the Corkscrew City arc. He was defeated and killed by Oizou about a month or two before the Corkscrew City arc, and although he himself never plays a very important role in the story, the Del Gotto Family serves as the secondary antagonists during the aforementioned arc.