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Star Trek
S1.E27
All episodesAll
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IMDbPro

The Alternative Factor

  • Episode aired Mar 30, 1967
  • TV-PG
  • 50m
IMDb RATING
5.7/10
4.3K
YOUR RATING
William Shatner and Robert Brown in Star Trek (1966)
ActionAdventureDramaSci-Fi

Existence itself comes under threat from a man's power-struggle with his alternate self, with the Enterprise's strained dilithium crystals presenting his key to a final solution.Existence itself comes under threat from a man's power-struggle with his alternate self, with the Enterprise's strained dilithium crystals presenting his key to a final solution.Existence itself comes under threat from a man's power-struggle with his alternate self, with the Enterprise's strained dilithium crystals presenting his key to a final solution.

  • Director
    • Gerd Oswald
  • Writers
    • Don Ingalls
    • Gene Roddenberry
  • Stars
    • William Shatner
    • Leonard Nimoy
    • Robert Brown
  • See production info at IMDbPro
  • IMDb RATING
    5.7/10
    4.3K
    YOUR RATING
    • Director
      • Gerd Oswald
    • Writers
      • Don Ingalls
      • Gene Roddenberry
    • Stars
      • William Shatner
      • Leonard Nimoy
      • Robert Brown
    • 58User reviews
    • 13Critic reviews
  • See production info at IMDbPro
  • See production info at IMDbPro
  • Photos37

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    Top cast18

    Edit
    William Shatner
    William Shatner
    • Captain James T. Kirk
    Leonard Nimoy
    Leonard Nimoy
    • Mr. Spock
    Robert Brown
    Robert Brown
    • Lazarus
    DeForest Kelley
    DeForest Kelley
    • Dr. McCoy
    Janet MacLachlan
    Janet MacLachlan
    • Charlene Masters
    Nichelle Nichols
    Nichelle Nichols
    • Uhura
    Richard Derr
    Richard Derr
    • Barstow
    Arch Whiting
    Arch Whiting
    • Assistant Engineer
    Christian Patrick
    • Transporter Chief
    Eddie Paskey
    Eddie Paskey
    • Lesley
    Bill Blackburn
    • Lieutenant Hadley
    • (uncredited)
    Vince Cadiente
    • Security Guard
    • (uncredited)
    Bill Catching
    Bill Catching
    • Anti-Matter Lazarus Being #2
    • (uncredited)
    Frank da Vinci
    • Crewman
    • (uncredited)
    Carey Foster
    Carey Foster
    • Enterprise crewmember
    • (uncredited)
    Tom Lupo
    • Security Guard
    • (uncredited)
    Ron Veto
    • Harrison
    • (uncredited)
    Al Wyatt Sr.
    Al Wyatt Sr.
    • Anti-Matter Lazarus Being #1
    • (uncredited)
    • Director
      • Gerd Oswald
    • Writers
      • Don Ingalls
      • Gene Roddenberry
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews58

    5.74.2K
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    Featured reviews

    5bgaiv

    Awful but quite memorable

    There is a solid sci-fi premise here, though the stakes should have been dialed way back. I hated this as a kid and now just see it as extremely silly.

    But turkey though it may be, EVERYBODY remembers this one. I actually liked the George Jettson personal spaceship.

    To be fair, any potential this episode had was destroyed by the original actor cast as Lazarus not showing up. The replacement went directly from casting to shooting with no time to prepare. Despite being handed a quite complex role.
    3ErasmicLather

    Weird Goatee Beard Changes - Thicker Then Thinner

    I love these old STAR TREK episodes but this must be one of the lamest ever. I couldn't figure out what on earth was going on - nor could Kirk and Spock by the sound of them. Spock keeps making strange and frankly incomprehensible statements like "it's possible...very possible." It's either possible or not, make up your mind, Mr Spock.

    Meanwhile, a man falls off a cliff, again and again, and is cured by a small plaster, though blood drips from his mouth. The best parts are Kirk's line "I want facts, not poetry!" and the Enterprise crew hanging out in the recreation room smirking at the state of the canteen coffee while the goatee man prowls about looking ragged. Couldn't Bones have loaned him a spare suit at least?

    It's still all splendid fun, of course, and I recommend it wholeheartedly over all modern TV programmes.
    6SpacemanBob

    Flawed, but I don't hate it.

    One thing that must be considered is that the show didn't have any single dedicated writer or writers, there were many different writers of any one episode to the next.

    The person who wrote this particular episode was Don Ingalls, who was a fairly prolific television writer from the early 1960's to mid 1980's. If not prolific, he received a lot of work. It's the only Star Trek episode he is credited with "written by." He is also has a "story by" credit for the 'A Private Little War' episode. That's it.

    There were numerous other writers in the series, many for just one episode, so there almost has to be a few misfires, just based on simple probability. This one isn't the strongest, admittedly. It was probably too ambitious and ended up spinning it's wheels. To start with, there's some goofy special effects. Interesting sci-fi themes are explored, but the explanations are vague (or wrong) and unfortunately never tied up. Guest star Robert Brown as Lazarus is in some scenes brilliant, and in others seems over the top. Still, I feel there's enough done well here to make it a worthwhile watch. If nothing else, it's memorable.
    6snoozejonc

    But what of Lazarus?

    Enterprise encounters a violent and unusual physical phenomenon.

    This is an interesting episode based on a brilliant idea, but unfortunately the screenplay does not translate to the screen very well.

    The plot must have sounded fantastic when it was first discussed and its introductory scene is very intriguing. Unfortunately it unfolds in a sometimes boring way, with several long winded, repetitive visuals and some big exposition dialogues.

    I love parallel universe stories and the matter v antimatter concept is a great idea, unfortunately what presents on screen makes little sense by the description of it's own technobabble.

    There are also some plot points that are ludicrous. Lazarus is obviously a threat yet has free run of the ship on more than one occasion.

    It's not all bad. Some visuals work well, like Lazarus's spacecraft on the planet surface, along with the cinematography and acting. Also it finishes strongly with Kirk helping to save two universes and leaves on poignant note about the poor guest character.

    William Shatner, Leonard Nimoy and Robert Brown are solid, particularly Brown playing the two versions of the guest character.

    For me it's a 5.5/10, but I round upwards.
    7Aylmer

    Awkward yet riveting hard scifi episode

    I have to be contrarian and admit that I like this episode more than most. It's a refreshing bit of hard science fiction with a wonderful mystery setup. The script hints at the possibility of an invasion from the antimatter universe and/or the destruction of all existence due to the collision of both. The execution, however, leaves much to be desired. This riveting premise unfortunately boils down to several encounters with Lazarus, a young man who keeps habitually falling off cliffs in Vasquez Rocks.

    The plot of this episode feels paper-thin with plenty of holes. If the very fabric of the universe is at stake and only one (mentally unhinged) person has any information about it, why let him roam around freely about a starship? There's plenty of laughs to be had as well, especially Spock's unemotional accusation of Lazarus being a liar right to his face, complete with an embarrassing musical sting.

    It's mostly the incidental music and Robert Brown's over-the-top performance that gives this episode much of its particular charm. It has that Season 1 innocence to it, hinting at a sort of sinister scientific space mystery approach to exploring the Star Trek universe that the show slowly abandoned as it went along. Watch with the un-altered special effects if possible.

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    Sci-Fi

    Storyline

    Edit

    Did you know

    Edit
    • Trivia
      This is the first time that live two-way communication with Starfleet Command is depicted. In previous episodes, communication with Starfleet Command was through delayed radio messages.
    • Goofs
      At the very beginning when Spock is reporting the atmospheric composition of the planet he has scanned he says "Oxygen Hydrogen atmosphere". This would be a very explosive combination. He meant to say "Oxygen Nitrogen atmosphere" (similar to Earth) but just got his line wrong.
    • Quotes

      Spock: I fail to comprehend your indignation, sir. I have simply made the logical deduction that you are a liar.

    • Crazy credits
      The closing credits are set against a combination background of stills from that episode and previous episodes.
    • Alternate versions
      Special Enhanced version Digitally Remastered with new exterior shots and remade opening theme song
    • Connections
      Featured in Mr. Plinkett's Star Trek 2009 Review (2010)
    • Soundtracks
      Theme From Star Trek
      Written by and credited to Alexander Courage

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    Details

    Edit
    • Release date
      • March 30, 1967 (United States)
    • Country of origin
      • United States
    • Official sites
      • handitv
      • Official Facebook
    • Language
      • English
    • Filming locations
      • Vasquez Rocks Natural Area Park - 10700 W. Escondido Canyon Rd., Agua Dulce, California, USA
    • Production companies
      • Desilu Productions
      • Norway Corporation
    • See more company credits at IMDbPro

    Tech specs

    Edit
    • Runtime
      • 50m
    • Color
      • Color
    • Sound mix
      • Mono
    • Aspect ratio
      • 1.33 : 1
      • 4:3

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