Nikko was a Human male pazaak player who lived in Iziz, the capital city of the planet Onderon, during the Onderon Civil War in 3951 BBY. He spent most of his time playing pazaak in the Iziz Cantina. When Meetra Surik, a former Jedi Knight, visited the cantina to investigate the murder of Captain Sullio of the Onderonian military in hopes of clearing Dr. Dhagon Ghent of the crime, Nikko was one of the people to whom she spoke. After a thorough investigation, Nikko and Surik were able to convince the Onderon authorities of Ghent's innocence, setting the doctor free.