Real world article
(written from a production point of view)
Martin Ko is an actor who appeared as a command ensign on the first two seasons of Star Trek: Enterprise. As a background performer he received no credit for his appearances and was identified by the call sheets for the episodes.
Ko may have also appeared in another background role in an episode of Star Trek: Voyager as a Starfleet duty uniform used in this series which had a handwritten "Martin Ko" in it was sold off on the Profiles in History auction on 5 April 2007. [1](X)