1.7k voters

The Best Alien TV Shows, Ranked

Updated March 22, 2021 10.7k votes 1.7k voters 88.6k views80 items

Whether you call them extraterrestrials or Martians, TV shows about aliens are always entertaining. The best TV shows about aliens feature otherworldly beings learning all they can about life on Earth - or possibly invading. This is a list of the greatest alien TV shows including everything from Futurama to Doctor Who to Battlestar Galactica.

What programs will you find on this list of top TV shows about aliens? The popular sitcom 3rd Rock from the Sun centered around four extraterrestrial characters who were sent to Earth to observe human behavior. John Lithgow, Kristen Johnston, French Stewart, and Joseph Gordon-Levitt starred in the hit NBC series. ALF is another good TV show about an alien living on Earth, this time in puppet form. The X-Files followed FBI Agents Mulder and Scully as they investigated supernatural occurrences and debated the existence of extraterrestrial life. Other good shows about aliens featured here include Smallville, Star Trek: Voyager, and Invader Zim.

Which show about aliens is the best? Give your favorites series a thumbs up to move them to the top of the list, and add any great shows that are missing.


  • 1

    The X-Files

    David Duchovny, Gillian Anderson
    The X-Files (Fox, 1993) is an American science fiction horror drama television series created...  more

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  • 2

    Falling Skies

    Noah Wyle, Drew Roy
    Falling Skies (TNT, 2011) is an American post-apocalyptic science fiction television series...  more

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  • 3

    Stargate SG-1

    Richard Dean Anderson, Michael Shanks
    Stargate SG-1 is an adventure and military science fiction television series and part of...  more

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  • 4

    The Expanse

    Thomas Jane, Steven Strait
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  • 5

    Doctor Who

    Christopher Eccleston, David Tennant
    Doctor Who (BBC, 2005) is a British science-fiction television show created by Sydney Newman,...  more

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  • 6


    Billy West, John DiMaggio
    Futurama is an American adult animated science fiction sitcom created by Matt Groening and...  more

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  • 7

    Lost in Space

    Toby Stephens, Molly Parker
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  • 8

    Battlestar Galactica

    Edward James Olmos, Mary McDonnell
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  • 9


    Shiri Appleby, Jason Behr
    Roswell is an American science fiction television series developed, produced, and co-written...  more

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  • 10


    Josh Holloway, Sarah Wayne Callies

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    Colony (USA Network, 2016) is an American science-fiction drama television series created by...  more

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  • 11


    Elizabeth Mitchell, Morris Chestnut
    V is an American science fiction television series that ran for two seasons on ABC, from...  more

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  • 12

    Star Trek: The Next Generation

    Patrick Stewart, Brent Spiner
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  • 13

    Star Trek: Voyager

    Kate Mulgrew, Robert Beltran
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  • 14

    Babylon 5

    Jerry Doyle, Mira Furlan
    Babylon 5 (Syndicated, 1994) is an American space opera television series created by writer...  more

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  • 15

    Rick and Morty

    Justin Roiland, Chris Parnell
    Rick and Morty (Adult Swim, 2013) is an American adult animated science-fiction sitcom created...  more

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  • 16


    Tom Welling, Michael Rosenbaum
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  • 17


    John Barrowman, Eve Myles
    Torchwood is a British science fiction television programme created by Russell T Davies. A...  more

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  • 18

    The Outer Limits

    Bob Johnson, Ben Wright
    The Outer Limits (ABC, 1963) is an American horror and speculative fiction anthology...  more

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  • 19

    Stargate Atlantis

    Joe Flanigan, Rachel Luttrell
    Stargate Atlantis is a Canadian-American adventure and military science fiction television...  more

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  • 20


    Grant Bowler, Stephanie Leonidas
    Defiance is an American science fiction television series developed by Rockne S. O'Bannon,...  more

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  • 21

    3rd Rock from the Sun

    John Lithgow, Jane Curtin
    3rd Rock from the Sun is an American sitcom that aired from 1996 to 2001 on NBC. The show is...  more

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  • 22


    Dakota Fanning, Julie Benz
    Taken, also known as Steven Spielberg Presents Taken, is a science fiction miniseries which...  more
  • 23

    Stargate Universe

    Robert Carlyle, Louis Ferreira
    Stargate Universe is a Canadian-American military science fiction television series and part...  more

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  • 24

    Ancient Aliens

    Robert Clotworthy, Giorgio Tsoukalos

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  • 25

    Star Trek: The Original Series

    William Shatner, Leonard Nimoy
    Star Trek is an American science fiction television series created by Gene Roddenberry that...  more

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