Sedriss, a Twi'lek who engaged in the vile trade of slavery, served as the primary Lieutenant for Zarien Kheev on the desert planet of Tatooine. This individual managed an Imperial penal facility dedicated to slave labor. On Tatooine, he crossed paths with Boba Fett, who was actively seeking any trace of Rianna Saren. While Sedriss acknowledged that Kheev valued Fett's contributions, he withheld any information regarding Saren's whereabouts. The Twi'lek then encountered Rianna Saren and engaged her in combat. After being bested by Rianna, Sedriss revealed the prison's location in response to her questioning. However, his fatal error was referring to her as "broken one", resulting in his death. Following this, Rianna seized his blaster rifle.