(written from a Production point of view)
David Ko is an actor who appeared as a command division officer in several episodes of Star Trek: Voyager. As a background actor he received no credit for his appearances but was identified by the call sheets. For the fourth season episode "The Raven", Ko worked as additional stand-in for Garrett Wang on one day where John Tampoya and Mike Fujimoto were unavailable.
In 1996, Ko appeared in the short drama Must Be the Music.
(This list is currently incomplete.)