Ensign Rivers was a Human male Starfleet officer in the mid-22nd century, serving as an engineer on two NX-class starships, Enterprise and Columbia NX-02.
Serving in Starfleet by 2153, Rivers was aboard Enterprise for its mission into the Delphic Expanse, at one point serving on the same engineering team as Crewman Jane Taylor. After Enterprise received devastating damage from the Xindi during the Battle of Azati Prime in 2154, Rivers was among the crew working to repair the ship and was confronted by Chief Engineer Charles Tucker III who had been suffering from a lack of sleep. (ENT: "The Forgotten")
After Enterprise returned home from the Delphic Expanse later that year, Rivers transferred to Columbia NX-02 under the command of Captain Hernandez, serving as an engineer aboard the ship. Prior to Columbia's launch, he was assigned by Chief Engineer Tucker to work with Strong in recalibrating the injector assembly in order to bring the Columbia's field matrix down to 0.3 microns. (ENT: "Affliction")
