Ziggy is Frank Sobotka's son and Nick's cousin. He is a Baltimore dock worker and involved his father's stevedores union, but is also involved in criminal activity. Like most of the dock workers, Ziggy frequents Delores' bar, where he amuses the other customers with his drunken antics, such as publicly exposing himself. His work on the docks is often poor, resulting in him regularly being fired and reinstated by his father. Due to his lack of seniority, Ziggy receives little work. He is often portrayed as a clumsy and inept beneficiary of his father's position and is more interested in goofing off. He is close to Nick, who often bails him out when his various money-making schemes backfire. Despite his shortcomings, however, he has a better understanding of technology than many of his colleagues. He uses his computer research skills to assist Nick in his dealings with the Greeks.