Multiple realities(covers information from several alternate timelines)
Ikuyo Seuphon was a Starfleet officer in the 24th century. Her serial number was OL-291-1091 WMW.
In 2371, she was a crewmember aboard the USS Voyager. She was among the crew stranded in the Delta Quadrant, when Voyager was forcefully brought there by the Caretaker.
Her name was listed on the crew roster display read by Harry Kim in early 2372. (VOY: "Non Sequitur")
This character was only mentioned in writing.