Worf and Miles O'Brien appeared in more Star Trek TV shows and movies than any other characters.

After them, which characters appeared in the most episodes and movies?

  • 3
    Spock, presumably. He's in every episode of TOS, all the TOS films, several TNG episodes, all the new films and a bunch of that Discovery nonsense.
    – Valorum
    Commented Aug 28, 2021 at 22:19
  • 2
    Picard, Troi, and Riker have to be up there. Probably in that specific order, relative to each other. Data too, I think. Commented Aug 28, 2021 at 22:31
  • 6
    I doubt that Spock is even in the top 10. TNG, DS9 and VOY all ran for 7 seasons. TOS ran for 3. Harry Kim, for example, is credited in 168 episodes. Spock in 79 episodes of TOS, 22 episodes of TAS, 7 movies, and a handful of others. Maybe 115-ish altogether.
    – Pete
    Commented Aug 29, 2021 at 22:56
  • 4
    Presumably, Mr. Anonymous redshirt :-)
    – Basya
    Commented Aug 30, 2021 at 8:04

2 Answers 2


Very likely next would be Picard himself

He appears on:

  • 176 episodes of TNG
  • 10 episodes of Picard
  • 1 episode of DS9
  • 4 Star Trek movies

That makes for 191 appearances.

After him we have Diana Troi with 185

  • 176 appearances on TNG
  • 3 appearances on Voyager
  • 4 movies
  • 1 episode of Picard
  • 1 episode of Star Trek Enterprise

After her I think Commander Riker with 184:

  • 176 appearances on TNG
  • 1 appearance on Voyager
  • 1 appearance on DS9
  • 4 movies
  • 1 episode of Picard
  • 1 episode of Star Trek Enterprise

Note Data and Dr Soong are different characters and that makes it difficult to judge Data appearances as a character but I'd say he's the next likely candidate although that's disputed.

  • 2
    Troi did appear in a few of the later episodes of Voyager (the ones with Lt. Barclay in them). She and Riker were also in the series finale of Enterprise, but Riker was in several more episodes of TNG than she was, so he has more appearances overall, contrary to my previous comment beneath the question. Commented Sep 1, 2021 at 0:40
  • @LogicDictates you are right, she appears on 3 episodes in Voyager Commented Sep 1, 2021 at 7:09
  • Troi and Riker have also appeared in Lower Decks and may do so again. Based on your numbers that wouldn't catch them up to Picard though, not yet.
    – Eric Nolan
    Commented Sep 1, 2021 at 9:35
  • @EricNolan Riker on 3 episodes so far and Troi in 1 episode. However canonicity of Lower Decks is ... controversial and I was honestly hinking on the tv shows only Commented Sep 1, 2021 at 17:09

The computer, voiced by Majel Barrett/Roddenberry.

Whilst I've not been able to track down a precise number, she's obviously way ahead of the closest competition.

Star Trek the original series season 1,episode 3 (Mudd's Women) onward.

The Next Generation (most episodes).

Deep Space 9, voice of computer in The Defiant.

A single episode of Enterprise.

Voyager, most episodes.

Star Trek Generations, Star Trek: First Contact, Star Trek Insurrection, Star Trek: Nemesis.

Her voiceover for J.J. Abrams reboot, Star trek was completed 8 days before her death.

Also various Star Trek Games, animations and associated media (too many to track-down).

Since before her death, Majel spent considerable time recording words phonetically, this has allowed Star Trek Discovery to incorporate her voice occasionally and will allow the Roddenberry legacy to still have this continuity for as long as it exists.

  • 3
    Interesting answer, but is the ship's computer a character?
    – RichS
    Commented Aug 29, 2021 at 22:56
  • 3
    Data is sentient. The computer is not, and therefore not a character. Also, would you claim that the ship's computer is the same character in every ship in every series?
    – RichS
    Commented Aug 30, 2021 at 1:57
  • 6
    I would disagree that the computer is the same character each time. Computers of the same type would be installed in other starships so it can't be in several different places simultaneously. Also, the speech pattern of the 1701 computer was very stilted and in a monotone; the one aboard 1701-D sounded much more natural.
    – GordonD
    Commented Aug 30, 2021 at 8:52
  • 5
    Yes, this is a false answer. Even if we accept that the computer's voices is a character (dubious), the voice of different computers definitely is not the same character. Commented Aug 30, 2021 at 15:21
  • 2
    @ARogueAnt. it does make sense that Data didn't try to seduce Kirk. But your point stands. :D
    – FreeMan
    Commented Aug 30, 2021 at 16:44

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