Gary Speckman was a member of Starfleet in the 24th century.
In 2353, Speckman was listed on a directory placard as having an office in room 45254 on Starbase 32. (TNG: "Violations")
He was listed as Engineering Division personnel on the dedication plaque of the USS Pasteur. (TNG: "All Good Things..." set artwork)
He was also listed on a USS Voyager crew manifest in 2371. (VOY: "Projections")