Hansel is one of the twin antagonists in the anime series Black Lagoon. Alongside his twin sister Gretel, Hansel is a Romanian child who survived the horrors of Eastern European orphanages and now works as a sadistic contract killer. Hansel is known for his disturbing demeanor and psychological instability, often using an axe as his weapon of choice. He plays a significant role in the 'Fujiyama Gangsta Paradise' arc, embodying the series' themes of trauma and the loss of innocence.