Entertainment
327 voters

The Best Sci-Fi Action TV Shows Ever

Updated May 20, 2021 2.7k votes 327 voters 5.8k views50 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 Expanse

    Steven Strait, Cas Anvar

    PremieredDecember 14, 2015

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  • 2
    84
    19

    Firefly

    Nathan Fillion, Gina Torres

    PremieredSeptember 20, 2002

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  • 3
    119
    50

    Battlestar Galactica

    Edward James Olmos, Mary McDonnell

    PremieredJanuary 14, 2005

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  • 4
    97
    35

    Stargate SG-1

    Amanda Tapping, Michael Shanks

    PremieredJuly 27, 1997

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  • 5
    78
    32

    Stargate Atlantis

    Joe Flanigan, Robert Picardo

    PremieredJuly 16, 2004

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  • 6
    85
    42

    Star Trek: The Next Generation

    Patrick Stewart, Jonathan Frakes

    PremieredSeptember 28, 1987

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  • 7
    76
    36

    Star Trek: Enterprise

    Scott Bakula, Connor Trinneer

    PremieredSeptember 26, 2001

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  • 8
    53
    15

    The Mandalorian

    Pedro Pascal, Gina Carano

    PremieredNovember 12, 2019

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  • 9
    65
    29

    Babylon 5

    Bruce Boxleitner, Claudia Christian

    PremieredJanuary 24, 1994

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  • 10
    70
    39

    Altered Carbon

    Anthony Mackie, Renée Elise Goldsberry

    PremieredFebruary 2, 2018

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  • 11
    50
    22

    Falling Skies

    Noah Wyle, Moon Bloodgood

    PremieredJune 19, 2011

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  • 12
    57
    31

    Continuum

    Rachel Nichols, Victor Webster

    PremieredMay 27, 2012

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  • 13
    54
    29

    Star Trek: Deep Space Nine

    Avery Brooks, Rene Auberjonois

    PremieredJanuary 4, 1993

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  • 14
    56
    32

    Battlestar Galactica

    Lorne Greene, Richard Hatch

    PremieredSeptember 17, 1978

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  • 15
    55
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    Star Trek: Voyager

    Kate Mulgrew, Robert Beltran

    PremieredJanuary 16, 1995

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  • 16
    56
    38

    Star Trek: Discovery

    Sonequa Martin-Green, Doug Jones

    PremieredSeptember 24, 2017

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  • 17
    50
    32

    Andromeda

    Kevin Sorbo, Lisa Ryder

    PremieredOctober 2, 2000

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  • 18
    38
    25

    Person of Interest

    Jim Caviezel, Michael Emerson

    PremieredSeptember 22, 2011

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  • 19
    37
    24

    Westworld

    Evan Rachel Wood, Thandie Newton

    PremieredOctober 2, 2016

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  • 20
    43
    31

    Dark Angel

    Jessica Alba, Michael Weatherly

    PremieredOctober 3, 2000

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  • 21
    23
    10

    Star Trek: Picard

    Patrick Stewart, Isa Briones

    PremieredJanuary 23, 2020

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  • 22
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    Jericho

    Robert Lindsay, David Troughton

    PremieredOctober 16, 2005

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  • 23
    10
    1

    Agents of S.H.I.E.L.D.

    Clark Gregg, Ming-Na

    PremieredSeptember 24, 2013

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  • 24
    30
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    Terminator: The Sarah Connor Chronicles

    Lena Headey, Thomas Dekker

    PremieredJanuary 13, 2008

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  • 25
    2
    1

    Star Wars: The Bad Batch

    Dee Bradley Baker

    PremieredMay 4, 2021

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