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The Best Sci-Fi Action TV Shows Ever

Updated October 14, 2020 3.6k votes 275 voters 4.3k views68 items

List RulesVote up your favorite action-packed science fiction shows that have aired on television.

The best science fiction action shows are a perfect storm of futuristic imagination and out-of-this-world excitement. The best sci-fi action series ever shown on television pull you to the edge of your seat like a UFO's tractor beam. If you’ve been looking for the best sci-fi action to add some fun to your TV nights, this list of the best science fiction action series of all time will help you figure out what needs to go into your queue.

The really good sci-fi action shows have our heroes battling aliens, space ships and - of course - each other. All that cool tech and cooler space ships are the perfect props for a fight scene. And, on shows where they're on a new world every episode, like Stargate? That is a fresh setting for action and adventure. From more traditional sci-fi like Battlestar Galactica (either of them) to science fiction-styled superheroes as Legends of Tomorrow, action science fiction shows are unstoppable.

Which shows balance action and sci-fi the best? Vote up the best science fiction action shows, vote down the shows that don't deliver cool fights and a breakneck pace with their technological dreams, and add any sci-fi series that are missing.

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  • 1
    Battlestar Galactica is listed (or ranked) 1 on the list The Best Sci-Fi Action TV Shows Ever
    122
    42

    Battlestar Galactica

    Edward James Olmos, Mary McDonnell

    Premiered2004

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  • 0
  • 2
    The Expanse is listed (or ranked) 2 on the list The Best Sci-Fi Action TV Shows Ever
    93
    27

    The Expanse

    Thomas Jane, Steven Strait

    Premiered2015

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  • 0
  • 3
    Firefly is listed (or ranked) 3 on the list The Best Sci-Fi Action TV Shows Ever
    70
    12

    Firefly

    Nathan Fillion, Gina Torres

    Premiered2002

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  • 4
    Star Trek: The Next Generation is listed (or ranked) 4 on the list The Best Sci-Fi Action TV Shows Ever
    89
    41

    Star Trek: The Next Generation

    Patrick Stewart, Brent Spiner

    Premiered1987

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  • 5
    Stargate SG-1 is listed (or ranked) 5 on the list The Best Sci-Fi Action TV Shows Ever
    84
    38

    Stargate SG-1

    Richard Dean Anderson, Michael Shanks

    Premiered1997

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  • 6
    Stargate Atlantis is listed (or ranked) 6 on the list The Best Sci-Fi Action TV Shows Ever
    71
    30

    Stargate Atlantis

    Joe Flanigan, Rachel Luttrell

    Premiered2004

  • 0
  • 7
    Star Trek: Enterprise is listed (or ranked) 7 on the list The Best Sci-Fi Action TV Shows Ever
    72
    32

    Star Trek: Enterprise

    Scott Bakula, John Billingsley

    Premiered2001

  • 0
  • 8
    Continuum is listed (or ranked) 8 on the list The Best Sci-Fi Action TV Shows Ever
    61
    29

    Continuum

    Rachel Nichols, Stephen Lobo

    Premiered2012

  • 0
  • 9
    Lost in Space is listed (or ranked) 9 on the list The Best Sci-Fi Action TV Shows Ever
    55
    26

    Lost in Space

    Toby Stephens, Molly Parker

    Premiered2018

  • 0
  • 10
    Battlestar Galactica is listed (or ranked) 10 on the list The Best Sci-Fi Action TV Shows Ever
    58
    30

    Battlestar Galactica

    Edward James Olmos, Mary McDonnell

    Premiered1978

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  • 0
  • 11
    Altered Carbon is listed (or ranked) 11 on the list The Best Sci-Fi Action TV Shows Ever
    62
    34

    Altered Carbon

    Joel Kinnaman, Renée Elise Goldsberry

    Premiered2018

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  • 12
    Star Trek: Deep Space Nine is listed (or ranked) 12 on the list The Best Sci-Fi Action TV Shows Ever
    55
    28

    Star Trek: Deep Space Nine

    Avery Brooks, Rene Auberjonois

    Premiered1993

  • 0
  • 13
    The Mandalorian is listed (or ranked) 13 on the list The Best Sci-Fi Action TV Shows Ever
    34
    8

    The Mandalorian

    Pedro Pascal, Gina Carano

    Premiered2019

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  • 14
    Babylon 5 is listed (or ranked) 14 on the list The Best Sci-Fi Action TV Shows Ever
    55
    32

    Babylon 5

    Jerry Doyle, Mira Furlan

    Premiered1994

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  • 0
  • 15
    Falling Skies is listed (or ranked) 15 on the list The Best Sci-Fi Action TV Shows Ever
    45
    23

    Falling Skies

    Noah Wyle, Drew Roy

    Premiered2011

  • 0
  • 16
    Dark Angel is listed (or ranked) 16 on the list The Best Sci-Fi Action TV Shows Ever
    50
    28

    Dark Angel

    Jessica Alba, Michael Weatherly

    Premiered2000

  • 0
  • 17
    Andromeda is listed (or ranked) 17 on the list The Best Sci-Fi Action TV Shows Ever
    54
    33

    Andromeda

    Kevin Sorbo, Lisa Ryder

    Premiered2000

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  • 0
  • 18
    Quantum Leap is listed (or ranked) 18 on the list The Best Sci-Fi Action TV Shows Ever
    52
    32

    Quantum Leap

    Scott Bakula, Dean Stockwell

    Premiered1989

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  • 0
  • 19
    Star Trek: Voyager is listed (or ranked) 19 on the list The Best Sci-Fi Action TV Shows Ever
    54
    35

    Star Trek: Voyager

    Kate Mulgrew, Robert Beltran

    Premiered1995

  • 0
  • 20
    Dark Matter is listed (or ranked) 20 on the list The Best Sci-Fi Action TV Shows Ever
    37
    18

    Dark Matter

    Marc Bendavid, Melissa O'Neil

    Premiered2015

  • 0
  • 21
    Westworld is listed (or ranked) 21 on the list The Best Sci-Fi Action TV Shows Ever
    34
    17

    Westworld

    Evan Rachel Wood, Thandie Newton

    Premiered2016

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  • 0
  • 22
    Star Trek: Discovery is listed (or ranked) 22 on the list The Best Sci-Fi Action TV Shows Ever
    51
    37

    Star Trek: Discovery

    Sonequa Martin-Green, Doug Jones

    Premiered2017

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  • 23
    Killjoys is listed (or ranked) 23 on the list The Best Sci-Fi Action TV Shows Ever
    33
    21

    Killjoys

    Hannah John-Kamen, Aaron Ashmore

    Premiered2015

  • 0
  • 24
    Star Trek: Picard is listed (or ranked) 24 on the list The Best Sci-Fi Action TV Shows Ever
    18
    4

    Star Trek: Picard

    Patrick Stewart, Santiago Cabrera

    Premiered2020

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  • 25
    UFO is listed (or ranked) 25 on the list The Best Sci-Fi Action TV Shows Ever
    33
    25

    UFO

    Ed Bishop, Dolores Mantez

    Premiered1970

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