Zacto Nan, also known as Zac'Nio in Mando'a, was a Zenolian/Human Male Mandalorian warrior, bounty hunter, and mercenary who lived and fought in the Mandalorian Civil War serving under Mand'alor Jaster Mereel & later,Jango Fett as a trusted lieutenant. Zacto was amongst one of the few responsible for destroying the Death Watch, in aiding Fett, since the splinter group was responsible for the death of his parents in 53 BBY. Following the civil war, Nan took up a career in bounty hunting, having Jango Fett as his mentor. Establishing a reputation as one of the most notorious Mandalorian mercenary in the galaxy, Zacto pursued a second career as a noble mercenary. Since Jango Fett earned the title of being the best bounty hunter ever, Zacto took it into consideration, applying it to his work.