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The Best Sci-Fi Action Series Ever 

Ranker TV
Updated March 27, 2020 2.1k votes 215 voters 2.8k views 65 items

List Rules Vote up the best science fiction action 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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list ordered by
1
Battlestar Galactica is listed (or ranked) 1 on the list The Best Sci-Fi Action Series Ever
Edward James Olmos, Mary McDonnell, Jamie Bamber

Premiered: 2004

Number of Seasons: 4

Number of Episodes: 75

Network: Syfy

Battlestar Galactica is an American military science fiction television series, and part of the Battlestar Galactica franchise. The show was developed by Ronald D. Moore and executive produced ...more
2
The Expanse is listed (or ranked) 2 on the list The Best Sci-Fi Action Series Ever
KaKha KaKhidze added Thomas Jane, Steven Strait, Cas Anvar

Premiered: 2015

The Expanse (Syfy, 2015) is an American science fiction television series developed by Mark Fergus and Hawk Ostby, based on the novels by James S. A. Corey. In a future where humanity has ...more
3
Stargate Atlantis is listed (or ranked) 3 on the list The Best Sci-Fi Action Series Ever
Joe Flanigan, Rachel Luttrell, David Hewlett

Premiered: 2004

Number of Seasons: 5

Number of Episodes: 100

Network: Syfy

Stargate Atlantis is a Canadian-American adventure and military science fiction television series and part of MGM's Stargate franchise. The show was created by Brad Wright and Robert C. Cooper ...more
4
Star Trek: Enterprise is listed (or ranked) 4 on the list The Best Sci-Fi Action Series Ever
Scott Bakula, John Billingsley, Jolene Blalock

Premiered: 2001

Number of Seasons: 4

Number of Episodes: 98

Network: UPN

Star Trek: Enterprise is a science fiction TV series and a prequel to the original Star Trek. The series premiered September 26, 2001, on the UPN television network with the final episode airing ...more
5
Stargate SG-1 is listed (or ranked) 5 on the list The Best Sci-Fi Action Series Ever
Richard Dean Anderson, Michael Shanks, Amanda Tapping

Premiered: 1997

Number of Seasons: 10

Number of Episodes: 214

Network: Showtime, Syfy

Stargate SG-1 is an adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's Stargate franchise. The show, created by Brad Wright and Jonathan Glassner, is ...more
6
Firefly is listed (or ranked) 6 on the list The Best Sci-Fi Action Series Ever
yurewitch.ron added Nathan Fillion, Gina Torres, Alan Tudyk

Premiered: 2002

Number of Seasons: 1

Number of Episodes: 14

Network: Fox Broadcasting Company

Firefly is an American space western science fiction drama television series created by writer and director Joss Whedon, under his Mutant Enemy Productions label. Whedon served as an executive ...more
7
Star Trek: The Next Gene... is listed (or ranked) 7 on the list The Best Sci-Fi Action Series Ever
Patrick Stewart, Brent Spiner, Jonathan Frakes

Premiered: 1987

Number of Seasons: 7

Number of Episodes: 178

Network: CBS

Star Trek: The Next Generation is an American science fiction television series created by Gene Roddenberry twenty-one years after the original Star Trek series debuted in 1966. Roddenberry, ...more
8
Battlestar Galactica is listed (or ranked) 8 on the list The Best Sci-Fi Action Series Ever
Edward James Olmos, Mary McDonnell, Jamie Bamber

Premiered: 1978

Number of Seasons: 1

Number of Episodes: 24

Network: American Broadcasting Company

Battlestar Galactica is an American science fiction television series, created by Glen A. Larson, that began the Battlestar Galactica franchise. Starring Lorne Greene, Richard Hatch and Dirk ...more
9
Andromeda is listed (or ranked) 9 on the list The Best Sci-Fi Action Series Ever
Kevin Sorbo, Lisa Ryder, Laura Bertram

Premiered: 2000

Number of Seasons: 5

Number of Episodes: 110

Network: Global Television Network, Syfy

Andromeda is a Canadian/American science fiction television series, based on unused material by the late Star Trek creator Gene Roddenberry, developed by Robert Hewitt Wolfe, and produced by ...more
10
Continuum is listed (or ranked) 10 on the list The Best Sci-Fi Action Series Ever
Rachel Nichols, Stephen Lobo, Victor Webster

Premiered: 2012

Number of Seasons: 2

Number of Episodes: 18

Network: Showcase

Continuum is a Canadian science fiction series created by Simon Barry and produced by Reunion Pictures Inc., Boy Meets Girl Film Company, and GK-TV. The series centers on the conflict between a ...more
11
Babylon 5 is listed (or ranked) 11 on the list The Best Sci-Fi Action Series Ever
Jerry Doyle, Mira Furlan, Richard Biggs

Premiered: 1994

Number of Seasons: 5

Number of Episodes: 110

Network: Prime Time Entertainment Network, TNT

Babylon 5 is an American space opera television series created by writer and producer J. Michael Straczynski, under the Babylonian Productions label, in association with Straczynski's Synthetic ...more
12
Star Trek: Deep Space Ni... is listed (or ranked) 12 on the list The Best Sci-Fi Action Series Ever
Avery Brooks, Rene Auberjonois, Cirroc Lofton

Premiered: 1993

Number of Seasons: 7

Number of Episodes: 176

Network: UPN

Star Trek: Deep Space Nine is a science fiction television series set in the Star Trek universe. The show is set in the Milky Way galaxy, in the years 2369–2375. In contrast to the setting of ...more
13
Dark Angel is listed (or ranked) 13 on the list The Best Sci-Fi Action Series Ever
Jessica Alba, Michael Weatherly, Richard Gunn

Premiered: 2000

Number of Seasons: 2

Number of Episodes: 43

Network: Fox Broadcasting Company

Dark Angel is an American biopunk/cyberpunk science fiction television series created by James Cameron and Charles H. Eglee and starring Jessica Alba in her breakthrough role. The show premiered ...more
14
Lost in Space is listed (or ranked) 14 on the list The Best Sci-Fi Action Series Ever
Toby Stephens, Molly Parker, Ignacio Serricchio
Lost in Space (Netflix, 2018) is an American science fiction web television series created by Matt Sazama and Burk Sharpless, and a reboot of the 1965 series. After encountering a rip in ...more
15
Quantum Leap is listed (or ranked) 15 on the list The Best Sci-Fi Action Series Ever
Scott Bakula, Dean Stockwell, Deborah Pratt

Premiered: 1989

Number of Seasons: 5

Number of Episodes: 95

Network: NBC

Quantum Leap is an American television series that originally aired on NBC for five seasons, from March 1989 through May 1993. Created by Donald P. Bellisario, it starred Scott Bakula as Dr. Sam ...more
16
Falling Skies is listed (or ranked) 16 on the list The Best Sci-Fi Action Series Ever
Noah Wyle, Drew Roy, Maxim Knight

Premiered: 2011

Number of Seasons: 2

Number of Episodes: 10

Network: TNT

Falling Skies is an American science fiction post-apocalyptic dramatic television series created by Robert Rodat and executive produced by Steven Spielberg. The series stars Noah Wyle as Tom ...more
17
Star Trek: Voyager is listed (or ranked) 17 on the list The Best Sci-Fi Action Series Ever
Kate Mulgrew, Robert Beltran, Roxann Dawson

Premiered: 1995

Number of Seasons: 7

Number of Episodes: 172

Network: UPN

Star Trek: Voyager is a science fiction television series, set in the Star Trek universe. The show takes place during the 2370s, and begins on the far side of the Milky Way galaxy, 75,000 ...more
18
Altered Carbon is listed (or ranked) 18 on the list The Best Sci-Fi Action Series Ever
Joel Kinnaman, Renée Elise Goldsberry, James Purefoy

Premiered: 2018

Network: Netflix

Altered Carbon is an American science fiction television series created by Laeta Kalogridis, based on the novel by Richard K. Morgan. In a future where human minds are digitized and downloaded ...more
19
UFO is listed (or ranked) 19 on the list The Best Sci-Fi Action Series Ever
Ed Bishop, Dolores Mantez, Michael Billington

Premiered: 1970

Number of Episodes: 26

Network: Associated Television

UFO is a 1970 British television science fiction series about an alien invasion of Earth, created by Gerry Anderson and Sylvia Anderson with Reg Hill, and produced by the Andersons and Lew ...more
20
Dark Matter is listed (or ranked) 20 on the list The Best Sci-Fi Action Series Ever
yurewitch.ron added Marc Bendavid, Melissa O'Neil, Anthony Lemke

Premiered: 2015

Dark Matter (Syfy, 2015) is a Canadian science fiction series created by Joseph Mallozzi and Paul Mullie, based on their comic book. Onboard a starship called the Raza, six people awaken in ...more
21
Knight Rider is listed (or ranked) 21 on the list The Best Sci-Fi Action Series Ever
David Hasselhoff, Edward Mulhare, Richard Basehart

Premiered: 1982

Number of Seasons: 4

Number of Episodes: 90

Network: NBC

Knight Rider is an American television series that originally ran from September 26, 1982, to August 8, 1986. The series was broadcast on NBC and stars David Hasselhoff as Michael Knight, a ...more
22
The Mandalorian is listed (or ranked) 22 on the list The Best Sci-Fi Action Series Ever
Pedro Pascal, Gina Carano, Nick Nolte

Premiered: 2019

Number of Seasons: 1

Network: Disney+

The Mandalorian (Disney+, 2019) is an American space opera web television series set in the Star Wars universe created by George Lucas. Taking place after the events in Return of the Jedi, but ...more
23
Killjoys is listed (or ranked) 23 on the list The Best Sci-Fi Action Series Ever
Hannah John-Kamen, Aaron Ashmore, Luke Macfarlane

Premiered: 2015

Number of Seasons: 5

Network: SyFy

Killjoys (Syfy, 2015) is a Canadian space adventure drama series created by Michelle Lovretta. In the Quad, a planetary system a fun loving trio of bounty hunters attempt to remain impartial as ...more
24
Star Trek: Discovery is listed (or ranked) 24 on the list The Best Sci-Fi Action Series Ever
Sonequa Martin-Green, Doug Jones, Anthony Rapp

Premiered: 2017

Number of Seasons: 2

Network: CBS All Access

Star Trek: Discovery (CBS All Access, 2017) is the first Star Trek series since Star Trek: Enterprise concluded in 2005. Set roughly a decade before the events of the original Star Trek series, ...more
25
Torchwood is listed (or ranked) 25 on the list The Best Sci-Fi Action Series Ever
John Barrowman, Eve Myles, Kai Owen

Premiered: 2006

Number of Seasons: 4

Number of Episodes: 41

Network: British Broadcasting Corporation, BBC One, Starz, BBC HD, BBC Three

Torchwood is a British science fiction television programme created by Russell T Davies. A spin-off from the 2005 revival of long-running science fiction programme Doctor Who, Torchwood aired ...more