Bob Sordal was a Starfleet officer in the 24th century.
As captain, he was listed as an Orbital Operations officer on the dedication plaque of the USS Brattain. (TNG: "Night Terrors", dedication plaque)
In 2353, he was listed as a Starfleet Operational Support Services officer on a directory placard in Starbase 32, Maxia sector. His office was in room #65114.(TNG: "Violations", directory)
In 2371, he was listed as a Research and Development officer on the dedication plaque of the USS Voyager. (VOY: "Caretaker", dedication plaque)
This character was only mentioned in writing.