Ronald Garrett was a Starfleet Officer serving in Starfleet during the 24th century.
Two days after his wedding to Kari in 2344 he received word of the Enterprise-C 's fate and cut their honeymoon short in order to return to the USS Silverstein which was assigned to the Klingon border.
In 2351 he was awaiting transfer to the USS Ambassador at Starbase 76 when he met Gedna Tachion, the ship's new Chief of Security. The pair became good friends and poker buddies, often teaming up at starbases to take large pots.
In 2361 he became the heavy cruiser's Executive Officer.
His sister Miranda married Tachion in 2363. She was killed aboard the USS Melbourne at Wolf 359. Afterward, he transfered to Utopia Planitia to oversee a refit team working on several Excelsior class cruisers and to spend time with his son before he enrolled in Starfleet Academy.First Battle of Chin'toka when an orbital defense platform's plasma cannons breached his ship's shields.