She is portrayed by Kelly Hu.
Around late December, 2419, Ozawa rendezvouses with the USS Orville after the latter defeated a Krill destroyer, the Kakov, while defending a newly established Union colony on Kastra 4. In the wreckage of the ship, the Orville recovered a perfectly intact shuttles—a rare discovery as shuttles tend to be destroyed along with their host vessel.
Rather than forwarding the shuttle to Planetary Union headquarters, Ozawa gives Captain Ed Mercer and Helmsman Gordon Malloy of the Orville a unique mission: to infiltrate a Krill warship with the intention of obtaining a copy of their holy book, the Anhkana. Though the Ankhana is stored in every Krill ship, the Union never managed to procure one of their own, and obtaining a copy would allow Union command to better understand the motivations of the highly religious Krill.
Around April, 2420, the Orville unintentionally encounters a mysterious planet locked in a multiphasic orbit. The planet is the first of its kind: its orbit runs through two universes around a star existing simultaneously in both. Ed reports the discovery to Admiral Ozawa, who orders the Orville to study the planet for the next 72 hours until a Science-class vessel can be deployed. However, Ed declined to report that his First Officer, Kelly Grayson, made contact with the planet's people by healing an injured girl with a dermoscanner.
Ed's omission proves disastrous. The planet's inhabitants and culture evolved significantly over the course of 11 days its time, relative to our own, as time moves far faster in their home universe; and Grayson had become a central figure of worship, known to them as the deity Kelly.
Ozawa is furious with Ed for concealing her contact with the planet's natives, and nearly considers stripping him of rank and command, but she demurs because the first contact was unintentional. She orders the Orville to avoid further contact with the natives until they achieve the technology for space flight, which she expects to occur in less than a month. Her orders were disobeyed. Kelly unsuccessfully attempts to end belief in Kelly by explaining the circumstances to the people, and Science and Engineering Officer Isaac lives among the people for 700 years in an unsuccessful attempt to do the same. Ultimately, the inhabitants lost belief in Kelly on their own.
- Her name is possibly a reference to Vice-Admiral Jisaburō Ozawa of the Imperial Japanese Navy during World War 2, recognized by military historians as one of Japan's most capable flag officers.
- She catches Ed mocking her voice when he forgets to close the communication channel to her office. He pleads with her for "mercy" before she ends the call herself.