Commander T'Zan is a Vulcan, born in 2313. He entered Starfleet Academy in 2330 to study Piloting a starship. He graduated as an Ensign in mid 2330. His first assignment was a Miranda class frigate. He then got promoted all the way up to Commander and by the time the ship was decommissioned in 2377 he was the ship's first officer. He then took a 2 year leave of absence to go back to Vulcan and spend time with his ageing parents. When he returned to Starfleet, he was assigned first officer on the USS Prometheus.