D. Keating was a Human Starfleet officer in the 22nd century. In January of 2155, he was listed as a Tactical officer on one of the directory placards at Starfleet Command's Fleet Operations Center, Sol Sector. His office was located in room #5550. (ENT: "Demons", United Earth directory) He was named after Star Trek: Enterprise actor Dominic Keating, who played Malcolm Reed, the tactical officer aboard Enterprise NX-01.