The Nizhrak'a were a low density species native to the gas-giant Nizhara. In their natural state, Nizhrak'a are essentially living gas clouds. Jiterica, who hoped that her membership in Starfleet would eventually lead to her people joining the Federation, was forced to spend her duty hours in an uncomfortable containment suit. The suit, which simulated human form and voice, enabled Jiterica to interact with the other members of the Stargazer's crew.