Ron Surma was a Starfleet officer in the 24th century. His planet of origin was Taurus II. He was a lieutenant commander in 2369.
In 2369, he was a crew member aboard the USS Enterprise-D. He was one of seventeen individuals who were from worlds outside the Federation. His proteins were tested by Doctor Beverly Crusher for a possible configuration match with the fragments of a four billion-year old genetic program. The results came back negative. (TNG: "The Chase", okudagram)
In 2371, he was a crew member aboard the USS Voyager. He was among the crew stranded in the Delta Quadrant, when Voyager was forcefully brought there by the Caretaker. In that year, his name was listed on a crew manifest. (VOY: "Projections")
This character was only mentioned in writing.
He was named after casting director Ron Surma.