Isaru Omin was a male Human who possessed sensitivity to the Force. He lived in the final years of the Galactic Republic. Having been deemed too old for Jedi Order training, he instead became a Senate Guard.
When Omin was two years old, the Jedi identified him as being Force-sensitive; however, due to his age, he was not accepted for training.
Omin worked as a Senate Guard in the waning years of the Galactic Republic. He partnered with Sagoro Autem, both serving under the command of Commander Zalin Bey. In 23 BBY, Omin and Autem investigated the death of Senator Jheramahd Greyshade. The investigation revealed that Autem's brother was the culprit, unknowingly aided by his son, Reymet Autem. When Sagoro intended to let his son flee, Omin was compelled to arrest his own partner.
Later, during the Clone Wars, Omin served in the Guard unit responsible for the protection of Bail Organa. Following the formation of the Galactic Empire, Omin aided his former partner, who was now a target of Darth Vader, in escaping Coruscant. Isaru refused to provide the Sith Lord with information and was subsequently killed by Vader in a brutal manner.