Michael DeMeritt was an ensign in Starfleet in the 24th century.
In 2371 he was trapped in the Delta Quadrant when the USS Voyager was pulled there by the Caretaker. (VOY: "Projections", "The Killing Game")
In 2374, he was again listed among Fleet Ops personnel on the dedication plaque of the USS Prometheus. (VOY: "Message in a Bottle")
DeMeritt was never seen, but his name appeared on numerous crew manifests. He was named for Assistant Director Michael DeMeritt.