UPN airs the 87th episode of Star Trek: Voyager. 
Stardate 51775.2: Voyager encounters a damaged ship piloted by the alien Steth, who requests help. Paris tries to help Steth repair his spacecraft, and Steth returns the favor by stealing a sample of Tom’s DNA and reshaping himself in Tom’s image. Tom transforms into Steth’s alien body as his attacker assumes his role among the crew – and his role in Tom’s relationship with B’Elanna. To silence Tom, Steth sends him off in his newly-repaired ship, where Tom is apprehended by an armada who assume from his appearance that he is Steth. On Voyager, Steth quickly tires of being a mere helmsman and sets his sights on command – by assuming the physical form of the ship’s captain.
written by Robert J. Doherty
directed by Jesus Salvador Trevino
music by Dennis McCarthyCast: Kate Mulgrew (Captain Kathryn Janeway), Robert Beltran (Chakotay), Roxann Biggs-Dawson (B’Elanna Torres), Robert Duncan McNeill (Tom Paris), Ethan Phillips (Neelix), Robert Picardo (The Doctor), Jeri Ryan (Seven of Nine), Tim Russ (Tuvok), Garrett Wang (Ensign Harry Kim), Dan Butler (Steth), Mary Elizabeth McGlynn (Daelen), Majel Barrett (Computer Voice)
LogBook entry by Earl Green