"Tinker, Tenor, Doctor, Spy" - The Doctor's daydreams take on dangerous dimensions when an alien voyeur sees those fantasies as reality.
Starring Kate Mulgrew as Captain Janeway, Robert Beltran as Chakotay, Roxann Dawson as B'Elanna Torres, Robert Duncan McNeill as Tom Paris, Ethan Phillips as Neelix, Robert Picardo as The Doctor, Tim Russ as Tuvok, Jeri Ryan as Seven of Nine, Garrett Wang as Harry Kim.
Guest Starring Jay Legget as Phlox, Googy Gress as the Overlooker, Robert Greenberg as Devro.
This episode was directed by John Bruno. The story was by Bill Vallelym. The teleplay was by Joe Menosky.
TV Guide online synopsis: The Doctor's experiments with a program that allows his mind to experience daydreams place him in the epicenter of a crisis when hostile aliens eavesdrop on his fantasies.
InfoBeat synopsis: An alien war party monitors the Doctor's daydreams to gather intelligence for an attack on Voyager.