- See Galloway for other articles with titles that contain, either by relationship or by coincidence, this character's surname.
He was part of the landing party to Eminiar VII in 2267, and was (with the rest of the landing party) briefly imprisoned there. Disguised as an Eminian guard, he assisted Spock in rescuing Ambassador Robert Fox from death, and guarded the Eminian High Council while Kirk and Spock acted to end Eminiar's war with Vendikar. (TOS episode: "A Taste of Armageddon")
Shortly after, Galloway was one of the security team that was dispatched to locate Doctor McCoy after he was subjected to a large dose of cordrazine. Upon arrival in the transporter room, he discovered Lt. John Kyle unconscious on the floor. He then accompanied Captain Kirk and his landing party to the planet Gateway to search for McCoy. (TOS episode: "The City on the Edge of Forever"; TOS - Crucible novel: The Fire and the Rose)
In early 2268, Galloway participated in the recovery of an interdimensional alien artifact known as the Transfer Key, successfully performing a very difficult transporter beamout of the device from a disabled Romulan bird-of-prey over planet Centaurus. (TOS - Legacies novel: Best Defense)
Galloway was killed by a fellow Starfleet officer, Captain Ronald Tracey on Omega IV in 2268, only to mysteriously reappear as part of the security detachment assigned to Janice Lester when she impersonated Kirk in 2269. (TOS episodes: "The Omega Glory", "Turnabout Intruder")
- Galloway's forename was never given in the many Star Trek: The Original Series episodes in which he appeared. His name was given in Provenance of Shadows, written by David R. George III.