G. Medina was a Human Starfleet officer in the 22nd century. In 2151, he was listed as a Mission Ops officer on a dedication plaque of Enterprise NX-01. (ENT: "Broken Bow", dedication plaque) In January of 2155, he was listed as a Telemetry officer on directory placards at Starfleet Command's Fleet Operations Center, Sol Sector. His office was located in room #3453. (ENT: "Demons", directories) This character was only mentioned in writing. He was named after construction foreman Greg Medina.