Private Martin was a member of the Earthforce Marine Corps, or "ground-pounders".
In 2259, Martin served in the 356th Infantry Division under General Richard Franklin and was dispatched to Babylon 5, ostensibly as relief troops for Io, but in reality headed for the planet Sh'lassen planet Akdor as a part of Operation Sudden Death.
Upon arriving at Babylon 5, Martin, along with Kleist and Romano verbally harassed Delenn until P.F.C. Durman intervened.
It is unknown if Martin survived or was killed in action on Akdor while assaulting the rebel stronghold at Matok.