Snowden was a female Starfleet lieutenant who served aboard the USS Okinawa.
In 2362, Snowden reported the discovery of two Tzenkethi marauders that were heading to M'kemas III. (ST - Typhon Pact novel: Rough Beasts of Empire)
In 2372, Admiral James Leyton reassigned Snowden to a Starfleet position on Earth in preparation for his coup against the Federation. (DS9 episode: "Paradise Lost")
- The Slings and Arrows miniseries features a male Snowden.