A dabo girl who posed as a teacher while dating Reginald Barclay, and helped a Ferengi plot to hijack his hologram.
Leosa is Reginald Barclay's girlfriend in Inside Man, who leaves him around the time his holographic projection to Voyager fails to arrive. Talking with Deanna Troi, Barclay realises she left the same day he tried to send the hologram and suspects she was involved.
When Barclay and Troi confront her, Leosa admits that she worked with the Ferengi to hijack the hologram and alter it, and that she is a dabo girl rather than the teacher she claimed to be. Her information helps Admiral Paris send a ship after the Ferengi.