During the 2360s, Masters was assigned to guard a deuridium storage facility on Kobliad during the unrest caused by a attack on the planet. The facility was breached by criminals and Masters was shot and nearly killed.
In 2366, Masters had reached the rank of lieutenant and was serving on the USS Parthian. During that year the ship was involved in the Hyralan Incident in which Masters was heavily involved in rescuing hundreds of lives. He was later himself rescued by the USS Swiftfire, but sustained serious injuries. In the aftermath there was some controversy around his actions due to a number of deaths during the incident.
The being known as Harbinger referred to Masters as "the Destroyer" due to Masters apparent pivotal role in a galaxy wide catastrophe. The Harbinger attempted to avoid this by killing Masters in the past. He travelled back to the events on Koblaid and changed events that resulted in Masters being shot, however Masters would survive.
He was the son of two prominent figures that meant his surname carried weight within Starfleet.
Masters had a very close relationship with Susan Core that was formed over the two years they served on the USS Bougainville. When considering whether he wanted to transfer to the USS Swiftfire his relationship with her was an important factor he took into account.
- In the past Masters has been represented in photomanipulations by Don Franklin and later by Michael Beach.