Ensign Coleman Schroeder was a Starfleet officer who was assigned to Deep Space 9.
In 2374, Ensign Schroeder started a romantic relationship with Lavin Meryn, who persuaded Schroeder to let Nausicaan black marketeers aboard the station during his times on duty in Ops. Schroeder was exposed when the Betazoid investigator Retlaw interviewed him and Captain Sisko had Schroeder confined to quarters pending a Starfleet investigation. (DS9 - Too Long a Sacrifice comic: "Issue 3", "Issue 4")