American actor who played Lucsly, the precise Department of Temporal Investigations agent, in the Deep Space Nine episode Trials and Tribble-ations.
James W. Jansen is an American character actor, often credited as Jim Jansen, with a long run of television guest appearances and film roles.
In the fifth-season Deep Space Nine episode Trials and Tribble-ations he plays Lucsly, who arrives with his colleague Dulmur to take Captain Sisko's statement about an unplanned journey into the twenty-third century.
Lucsly is the more pedantic of the two, concerned with exact dates and with James Kirk's record number of temporal violations. The framing scenes in Sisko's office, played entirely deadpan, bookend the episode's tribute to The Trouble with Tribbles.