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78 voters

The Best Action TV Shows of 2021

Updated January 21, 2021 826 votes 78 voters 4.5k views37 items

List RulesVote up the best action series that aired new episodes during the 2021 calendar year.

This list looks at the best current television action series that that will be airing new episodes in 2021. The best action series in 2021 include dramas, horror, superhero shows, spy thrillers, and even a heists. Which are the best new and returning action shows in 2021?

A really good action television series catches us up in its spell and shows like The Blacklist have kept us on the edge of our seats for years, though newer shows such as The Rookie are just as action-packed. Superhero shows and comic book TV series are both big parts of the best action series in 2021, and that of course includes The Boys and CW Arrowverse series like The Flash and Batwoman. Other great action series airing new episodes in 2021 include action sci-fi shows like The Expanse and the Spanish series Money Heist on Netflix. But not all action comes at a nerdy genre price, several 2021 action series are also good ol' crime dramas and tense procedurals, like Gangs of London, and Chicago Fire.

Which television action series are you going to watch in 2021? Keep the top of this list action-packed by voting up the best new and returning action TV shows to air in 2021.

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  • The Boys1
    40
    17

    The Boys

    Karl Urban, Elisabeth Shue

    Premiered2019

    NetworkAmazon Video

    The Boys (Amazon Video, 2019) is an American superhero drama web television series created by...  more

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  • The Blacklist2
    31
    11

    The Blacklist

    James Spader, Megan Boone

    Premiered2013

    NetworkNBC

    The Blacklist (NBC, 2013) is an American crime thriller television series created by Jon...  more

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  • Gangs of London3
    22
    8

    Gangs of London

    Ray Panthaki, Joe Cole

    Premiered2020

    NetworkSky, AMC

    Gangs of London (Sky, 2020) is a British action–crime drama television series. When the head...  more

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  • The Rookie4
    21
    7

    The Rookie

    Nathan Fillion, Afton Williamson

    Premiered2018

    NetworkABC

    The Rookie (ABC, 2018) is an American crime drama television series created by Alexi Hawley,...  more

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  • Money Heist5
    28
    15

    Money Heist

    Úrsula Corberó, Itziar Ituño

    Premiered2017

    NetworkNetflix

    Money Heist (Antena 3/Netflix, 2017) is a Spanish heist television series created by Álex...  more

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  • The Last Kingdom6
    27
    15

    The Last Kingdom

    Alexander Dreymon, David Dawson

    Premiered2015

    NetworkBBC America

    The Last Kingdom (BBC America, 2015) is a British historical fiction television series based...  more

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  • SEAL Team7
    24
    12

    SEAL Team

    David Boreanaz, Max Thieriot

    Premiered2017

    NetworkCBS

    SEAL Team (CBS, 2017) is an American drama series created by Ben Cavell. The drama follows the...  more

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  • Snowpiercer8
    21
    10

    Snowpiercer

    Daveed Diggs, Jennifer Connelly

    Premiered2020

    NetworkTBS

    Snowpiercer (TNT, 2020) is an American television series based on the French graphic novel Le...  more

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  • SWAT9
    20
    10

    SWAT

    Shemar Moore, Stephanie Sigman

    Premiered2017

    NetworkCBS

    S.W.A.T. (CBS, 2017) is an American drama series based on the 1975 series of the same name....  more

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  • Doom Patrol10
    25
    17

    Doom Patrol

    April Bowlby, Diane Guerrero

    Premiered2019

    NetworkDC Universe

    Doom Patrol (DC Universe, 2019) is an American superhero drama web television series based on...  more

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  • The Expanse11
    14
    4

    The Expanse

    Thomas Jane, Steven Strait

    Premiered2015

    NetworkSyfy

    The Expanse (Syfy, 2015) is an American science fiction television series developed by Mark...  more

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  • Condor12
    22
    15

    Condor

    Max Irons, Brendan Fraser

    Premiered2018

    NetworkAudience

    Condor (Audience, 2018) is an American television series created by Todd Katzburg and Jason...  more

    More 

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  • The Walking Dead13
    20
    20

    The Walking Dead

    Andrew Lincoln, Jon Bernthal

    Premiered2010

    NetworkAMC

    The Walking Dead (AMC, 2010) is an American post-apocalyptic horror television series...  more

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  • Alex Rider14
    8
    7

    Alex Rider

    Otto Farrant, Stephen Dillane

    Premiered2020

    NetworkPrime Video

    Alex Rider (Prime Video, 2020) is a British action, spy, thriller based on novel series of the...  more

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  • Magnum, P.I.15
    12
    14

    Magnum, P.I.

    Jay Hernandez, Perdita Weeks

    Premiered2018

    Magnum, P.I. (CBS, 2018) is an American crime drama series, and a remake of the 1980 series....  more

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  • Chicago P.D.16
    12
    15

    Chicago P.D.

    Jason Beghe, Jon Seda

    Premiered2014

    NetworkNBC

    Chicago P.D. (NBC, 2014) is an American police procedural drama television series created by...  more

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  • 9-1-117
    8
    10

    9-1-1

    Angela Bassett, Connie Britton

    Premiered2018

    NetworkFox

    9-1-1 (Fox, 2018) is an American procedural drama television series created by Ryan Murphy and...  more

    More 

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  • The Flash18
    12
    18

    The Flash

    Grant Gustin, Candice Patton

    Premiered2014

    NetworkThe CW

    The Flash (The CW, 2014) is an American superhero television series developed by Greg...  more

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  • Southern Survival19
    1
    4

    Southern Survival

    Mikki Montgomery, Steve Jordan

    Premiered2020

    NetworkNetflix

    Southern Survival (Netflix, 2020) is an American documentary television series. Follow a crew...  more

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  • Jurassic World: Camp Cretaceous20
    4
    7

    Jurassic World: Camp Cretaceous

    Scott Kreamer, Lane Lueras

    Premiered2020

    NetworkNetflix

    Jurassic World: Camp Cretaceous (Netflix, 2020) is a CGI-animated television series. Six teens...  more

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  • El Cid21
    5
    10

    El Cid

    Jaime Lorente, Pablo Álvarez

    Premiered2020

    NetworkAmazon Video

    El Cid (Prime Video, 2020) is a Spanish action-adventure, political war drama created by Luis...  more

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  • Blue Bloods22
    2
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    Blue Bloods

    Donnie Wahlberg, Bridget Moynahan

    Premiered2010

    NetworkCBS

    Blue Bloods is an American police procedural drama series shown on CBS in the United States...  more

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  • Walker23
    2
    5

    Walker

    Jared Padalecki

    Premiered2021

    NetworkThe CW

    Walker (The CW, 2021) is an American western, action-drama television series written by Anna...  more

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  • Insomnia24
    0
    5

    Insomnia

    Alex Jay, Dylan Everett

    Premiered2021

    NetworkCrackle

    Insomnia (Crackle, 2021) is an Russian action, adventure drama series created by Ilya Kulikov...  more

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  • Batwoman25
    4
    8

    Batwoman

    Javicia Leslie, Meagan Tandy

    Premiered2019

    NetworkThe CW

    Batwoman (The CW, 2019) is an American superhero television series originally based on the DC...  more

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