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The Best Sci Fi Television Series of All Time

372k votes 22k voters 461k views 228 items tags f p @

List Criteria: Sci-fi TV shows and series with science fiction elements

A list of the best sci-fi shows and best sci-fi series of all time, as ranked by hundreds of Ranker voters. This list includes long-running sci-fi TV shows like Doctor Who as well as some of the best cancelled shows of the genre. Science fiction TV shows have been around for decades, and some of the longest running shows have fallen into this category. Popular shows such as Star Trek have enjoyed several incarnations, and fan-favorite shows like Firefly and The X-Files have made the crossover from TV to the big screen.

Vote for your favorite science fiction shows to move them to the top of the list, or press re-rank to create your own list of your favorite science fiction series. Be sure to stop by to vote on the best British sitcoms and best current TV shows airing right now.
List Photo: user uploaded image
Collection Photo:  via hbo
  • 323 ReRanks
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  1. 1
    + 7,993
    - 3,437


    Nathan Fillion, Gina Torres, Alan Tudyk

    ;
  2. 2
    + 6,062
    - 2,762


    Patrick Stewart, Brent Spiner, Jonathan Frakes

    ;
  3. 3
    + 7,125
    - 2,884


    Edward James Olmos, Mary McDonnell, Jamie Bamber

    ;
  4. 4
    + 6,274
    - 3,504

    the people's #1 & most listed
    Peter Capaldi, Jenna Coleman, Matt Smith

    ;
  5. 5
    + 5,185
    - 2,173


    William Shatner, Leonard Nimoy, DeForest Kelley

    ;
  6. 6
    + 5,374
    - 2,391


    David Duchovny, Gillian Anderson, Mitch Pileggi

    ;
  7. 7
    + 5,481
    - 2,167


    Richard Dean Anderson, Michael Shanks, Amanda Tapping

    ;
  8. 8
    + 3,690
    - 1,993


    Rod Serling, Robert McCord, Jay Overholts

    ;
  9. 9
    + 4,288
    - 2,484


    Anna Torv, Joshua Jackson, Jasika Nicole

    ;
  10. 10
    + 4,781
    - 3,846

    often listed & ranked high on reranks
    Jerry Doyle, Mira Furlan, Richard Biggs

    ;
  11. 11
    + 3,553
    - 2,113


    Avery Brooks, Rene Auberjonois, Cirroc Lofton

    ;
  12. 12
    + 3,703
    - 2,327


    Ben Browder, Claudia Black, Anthony Simcoe

    ;
  13. 13
    + 3,405
    - 1,987


    Kate Mulgrew, Robert Beltran, Roxann Dawson

    ;
  14. 14
    + 2,953
    - 1,924


    Scott Bakula, Dean Stockwell, Deborah Pratt

    ;
  15. 15
    + 3,059
    - 1,729


    Joe Flanigan, Rachel Luttrell, David Hewlett

    ;
  16. 16
    + 3,028
    - 1,759


    Scott Bakula, John Billingsley, Jolene Blalock

    ;
  17. 17
    + 3,426
    - 2,173


    Billy West, John DiMaggio, Katey Sagal

    ;
  18. 18
    + 2,638
    - 2,099


    John Barrowman, Eve Myles, Kai Owen

    ;
  19. 19
    + 2,785
    - 1,974


    Colin Ferguson, Salli Richardson-Whitfield, Erica Cerra

    ;
  20. 20
    + 2,732
    - 2,378


    Hayden Panettiere, Jack Coleman, Milo Ventimiglia

    ;
  21. 21
    + 3,064
    - 2,995


    Naveen Andrews, Matthew Fox, Jorge Garcia

    ;
  22. 22
    + 1,945
    - 1,587

    added by Richard777
    Kevin Conway, Joe Pascual

    ;
  23. 23
    + 2,361
    - 1,742


    Eddie McClintock, Joanne Kelly, Saul Rubinek

    ;
  24. 24
    + 1,325
    - 579

    ranked low on reranks & added by JimmyPaton
    Edward James Olmos, Mary McDonnell, Jamie Bamber

    ;
  25. 25
    + 2,362
    - 1,876


    Elizabeth Mitchell, Morris Chestnut, Joel Gretsch

    ;
  26. 26
    + 1,964
    - 1,737


    Chris Barrie, Craig Charles, Danny John-Jules

    ;
  27. 27
    + 1,948
    - 1,568


    Jerry O'Connell, Sabrina Lloyd, John Rhys-Davies

    ;
  28. 28
    + 2,184
    - 1,895


    Lena Headey, Thomas Dekker, Summer Glau

    ;
  29. 29
    + 1,892
    - 1,530


    Robert Carlyle, Louis Ferreira, Brian J. Smith

    ;
  30. 30
    + 1,312
    - 1,041


    Stephen Moore, Simon Jones, David Dixon

    ;
  31. 31
    + 919
    - 223

    ranked low on reranks
    Barry Jones

    ;
  32. 32
    + 1,510
    - 1,366


    Lee Majors, Richard Anderson, Martin E. Brooks

    ;
  33. 33
    + 429
    - 165

    ranked low on reranks & added by nymless
    Clark Gregg, Ming-Na Wen, Brett Dalton

    ;
  34. 34
    + 1,605
    - 1,752

    often listed & ranked high on reranks
    Eliza Dushku, Harry Lennix, Fran Kranz

    ;
  35. 35
    + 1,432
    - 1,268

    added by toddrh
    Rachel Nichols, Stephen Lobo, Victor Webster

    ;
  36. 36
    + 1,569
    - 1,719

    often listed & ranked high on reranks
    Martin Landau, Barbara Bain, Nick Tate

    ;
  37. 37
    + 1,661
    - 1,385

    added by dustman025
    Noah Wyle, Drew Roy, Maxim Knight

    ;
  38. 38
    + 1,293
    - 1,040

    added by huggums537
    Gil Gerard, Erin Gray, Felix Silla

    ;
  39. 39
    + 947
    - 232

    ranked low on reranks
    Shohreh Aghdashloo, Cas Anvar, Wes Chatham

    ;
  40. 40
    + 1,648
    - 1,493


    Lucy Lawless, Renée O'Connor, Ted Raimi

    ;
  41. 41
    + 1,569
    - 1,572


    Jessica Alba, Michael Weatherly, Richard Gunn

    ;
  42. 42
    + 1,479
    - 1,572


    Kevin Sorbo, Lisa Ryder, Laura Bertram

    ;
  43. 43
    + 1,320
    - 1,254


    Guy Williams, June Lockhart, Mark Goddard

    ;
  44. 44
    + 613
    - 391

    ranked low on reranks
    Grant Gustin, Candice Patton, Danielle Panabaker

    ;
  45. 45
    + 1,158
    - 947

    added by wiabux
    Adrian Paul, Stan Kirsch, Jim Byrnes

    ;
  46. 46
    + 974
    - 846


    Roddy McDowall, Ron Harper, James Naughton

    ;
  47. 47
    + 1,122
    - 1,168


    Bill Bixby, Lou Ferrigno, Jack Colvin

    ;
  48. 48
    + 1,152
    - 1,104


    William Hurt, Alec Newman, Giancarlo Giannini

    ;
  49. 49
    + 1,272
    - 1,429


    Joel Hodgson, Michael J. Nelson, Trace Beaulieu

    ;
  50. 50
    + 1,505
    - 1,429


    John Lithgow, Jane Curtin, Kristen Johnston

    ;
229 +

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