A Federation researcher who, with his colleague Dr Linke, is seized from the observation station on Minara II and dies in the Vians' experiments.
Dr Ozaba is one of the two scientists manning a Federation station on Minara II to study the final stages of its star before it goes nova. He appears in the third-season Original Series episode The Empath, played by Davis Roberts.
The station's log tape, played back by Kirk's landing party, shows Ozaba unsettled by the planet's tremors and quoting a line from the Psalms about the deep places of the earth. Moments later he is transported away by an unseen force, followed by Linke.
Both men are later found dead in the Vians' subterranean laboratory, their bodies displayed in tubes beside empty ones labelled for McCoy and Spock. They were the first subjects in the Vians' attempt to teach the mute empath Gem the instinct of self-sacrifice.