Ensign Harris was a Starfleet officer in the 24th century.

In 2367, he was assigned to the Engineering Department of the USS Enterprise-D. When a preburner was turned offline after it was discovered that the deuterium flow was 2% higher, the unit was turned off. Chief Engineer Geordi La Forge planned for Harris to pull it from the matter-antimatter reaction assembly and perform a full watt test on the unit a day later. (TNG-R: "Galaxy's Child")

This character was only mentioned in writing.
For the remastered edition of "Galaxy's Child", the original okudagram was replaced by a new graphic. Harris was mentioned in that graphic.