During the last few years of the Galactic Republic, Omin served as a Senate Guard. He was the partner of Sagoro Autem, and served under Commander Zalin Bey. In 23 BBY, Omin and Autem investigated the murder of Senator Jheramahd Greyshade. After it was discovered that Autem's sons were responsible, and Autem planned on letting one escape, Omin was forced to arrest his partner.
Later, during the Clone Wars, Omin was a member of the Guard unit responsible for protecting Bail Organa. After the formation of the Galactic Empire, Omin helped his former partner, now wanted by Darth Vader, to escape from Coruscant. Refusing to give the Sith Lord information, Isaru was brutally killed by Vader.
- Star Wars: Republic: Honor and Duty (First appearance)
- Republic 61: Dead Ends
- Republic 78: Loyalties