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The Best Sci-Fi Action TV Shows Ever

Updated January 22, 2021 2.7k votes 294 voters 4.9k views43 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 and vote down the shows that don't deliver cool fights and a breakneck pace with their technological dream.

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  • The Expanse1
    101
    30

    The Expanse

    Thomas Jane, Steven Strait

    Premiered2015

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  • Battlestar Galactica2
    127
    49

    Battlestar Galactica

    Edward James Olmos, Mary McDonnell

    Premiered2004

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  • Firefly3
    76
    17

    Firefly

    Nathan Fillion, Gina Torres

    Premiered2002

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  • Stargate SG-14
    91
    39

    Stargate SG-1

    Richard Dean Anderson, Michael Shanks

    Premiered1997

  • Stargate Atlantis5
    78
    31

    Stargate Atlantis

    Joe Flanigan, Rachel Luttrell

    Premiered2004

  • Star Trek: Enterprise6
    76
    34

    Star Trek: Enterprise

    Scott Bakula, John Billingsley

    Premiered2001

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  • Star Trek: The Next Generation7
    89
    47

    Star Trek: The Next Generation

    Patrick Stewart, Brent Spiner

    Premiered1987

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  • Continuum8
    64
    32

    Continuum

    Rachel Nichols, Stephen Lobo

    Premiered2012

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  • The Mandalorian9
    41
    11

    The Mandalorian

    Pedro Pascal, Gina Carano

    Premiered2019

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  • Babylon 510
    60
    32

    Babylon 5

    Jerry Doyle, Mira Furlan

    Premiered1994

  • Altered Carbon11
    65
    37

    Altered Carbon

    Joel Kinnaman, Renée Elise Goldsberry

    Premiered2018

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  • Battlestar Galactica12
    58
    33

    Battlestar Galactica

    Edward James Olmos, Mary McDonnell

    Premiered1978

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  • Star Trek: Deep Space Nine13
    55
    31

    Star Trek: Deep Space Nine

    Avery Brooks, Rene Auberjonois

    Premiered1993

  • Falling Skies14
    48
    24

    Falling Skies

    Noah Wyle, Drew Roy

    Premiered2011

  • Andromeda15
    55
    35

    Andromeda

    Kevin Sorbo, Lisa Ryder

    Premiered2000

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  • Star Trek: Voyager16
    56
    36

    Star Trek: Voyager

    Kate Mulgrew, Robert Beltran

    Premiered1995

  • Dark Angel17
    50
    30

    Dark Angel

    Jessica Alba, Michael Weatherly

    Premiered2000

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  • Star Trek: Discovery18
    56
    40

    Star Trek: Discovery

    Sonequa Martin-Green, Doug Jones

    Premiered2017

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  • Westworld19
    37
    20

    Westworld

    Evan Rachel Wood, Thandie Newton

    Premiered2016

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  • Samurai Jack20
    0
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    Samurai Jack

    Phil LaMarr, Mako

    Premiered2001

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  • Star Trek: Picard21
    20
    7

    Star Trek: Picard

    Patrick Stewart, Santiago Cabrera

    Premiered2020

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  • Jericho22
    30
    21

    Jericho

    Hans Matheson, Clarke Peters

    Premiered2006

  • Person of Interest23
    34
    27

    Person of Interest

    Jim Caviezel, Taraji P. Henson

    Premiered2011

  • Agents of S.H.I.E.L.D.24
    0
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    Agents of S.H.I.E.L.D.

    Clark Gregg, Ming-Na Wen

    Premiered2013

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  • Rugal25
    0
    0

    Rugal

    Choi Jin-Hyuk, Jo Dong-Hyuk

    Premiered2020