Thompson was a Human Starfleet officer assigned to the USS Equinox as a junior science officer, and was pulled into the Delta Quadrant in 2371 by the Caretaker. In 2376, his crew sent a distress call which was answered by the USS Voyager. When the rescue party found him, he was armed in a crew quarters, and started firing at the rescue team. They had to stun him, before bringing him aboard Voyager for medical treatment. (VOY: "Equinox") Thompson was portrayed by actor Steve Dennis.