Star Trek: Voyager


Season 1, Ep 13, Aired 5/1/95
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  • Episode Description
  • Stardate: 48734.2After Chakotay and Tuvok are injured in a shuttle accident, a non-corporeal life form begins to wreak havoc on Voyager by infiltrating the minds of the crew and altering the ship's systems one by one.

  • Cast & Crew
  • Robert Picardo

    The Doctor

  • Kate Mulgrew

    Captain Kathryn Janeway

  • Robert Beltran

    Commander Chakotay

  • Roxann Dawson

    Lt. B'Elanna Torres

  • Jennifer Lien


  • Fan Reviews (7)
  • Much Ado About Nothing

    By Celedorian, Apr 02, 2015

  • Clever

    By galygaly, Feb 10, 2014

  • Cathexis

    By TrueTvWatcher, Aug 31, 2011

  • Well done episode with almost horror movie feel to it. One of the better one of season 1.

    By samrag, Jul 16, 2009

  • Due to the episode cut it wound up being the best episode of season one!

    By cage2377, Sep 09, 2008

  • Trivia & Quotes
  • Quotes (7)

    • Janeway: Apparently you've just crashed the main computer, locked out the bridge and stopped this ship cold. Do you want to tell me why?
      B'Elanna: Captain, I don't know what you're talking about.
      Janeway: (huffs) What the hell is going on here?

    • The Doctor: Mr. Neelix, just because a man changes his drink order doesn't mean he is possessed by an alien.

    • The Doctor: (to B'Elanna, about a spirit wheel she's put up) You might have asked before adorning my Sickbay with animal remains.

    • B'Elanna: How did you manage to reintegrate his consciousness?
      The Doctor: It involved three neural transceivers, two cortical stimulators and fifty gigaquads of computer memory. I would be happy to take you through the process, but it would take at least ten hours to explain it all to you. Needless to say, it was a remarkable procedure. I would consider writing a paper about it if there were a convenient forum in which to publish it.

    • The Doctor: I could examine every crew member you've mentioned so far, every person on board for that matter, and it wouldn't do any good. From what we can tell, the alien can jump from person to person at will. Neelix: It sounds to me like you're defending Ensign Parsons. The Doctor: I'm not defending him, I'm just pointing out that you're acting a little paranoid. In fact, one could say you're acting a little too paranoid.

    Show More Quotes

    Notes (1)

    • This episode had the working title "Intruder Alert". "Cathexis" is the Greek word for "Occupation".

    Trivia (2)

    • Carolyn Seylour, The woman who plays Mrs. Templeton also played Subcommander Taris in the TNG episode "Contagion", Mirasta Yale in the TNG episode "First Contact", and Commander Toreth in the TNG "Face of the Enemy"

    • Nitpick: Although Paris and Tuvok have worn the incorrect rank pips for most of the season up to this point, in this episode, their ranks seem fluctuate from scene to scene.

    Allusions (1)

    • Back to the Future:

      Tom's childhood doctor, Doc Brown, is no doubt named after Christopher Lloyd's character of the same name in the Back to the Future trilogy.

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