Ian was a Terran slave who lived in the Mirror universe. He grew up in the Dahkur camp on Bajor.
In 2369, Intendant Kira Nerys sent Ian through an Iconian gateway that the Alliance had recently discovered. His destination was Romulus, near to the Romulan empress; the Intendant was testing the capabilities of the gateway. Ian was killed by the Romulan Royal Guards and Kira simply asked Odo to send her another Terran slave. (ST novel: Dark Passions, Book One)