Gordon is a member of Sisko's crew on the captured Jem'Hadar fighter who survives the crash on a nebula planet but is killed in the final fight with Remata'Klan's soldiers.
Gordon appears in the sixth-season episode Rocks and Shoals, played by Joseph Fuqua. He serves under Benjamin Sisko on the captured Jem'Hadar ship during its missions behind enemy lines at the start of the Dominion War, and is among those stranded when it goes down.
With the rest of the crew he takes up position above the pass into which the Vorta Keevan sends his own Jem'Hadar, having sold them out in return for his own safe surrender.
Sisko pleads with Remata'Klan to give up, the Third refuses, and the Jem'Hadar advance into the crossfire. Gordon is the one Starfleet death. The episode closes with the crew burying him alongside the soldiers they have just killed.