When I watched the season finale of season 3 of Star Trek: Discovery, during the final season on the bridge, Tilly is in sciences blue. If you look at the screenshot on this page: (you'll need to scroll down).

Tilly is in command red. In the latter part of that scene when they pan by the bridge crew, when paused the science blue of Tilly's uniform looks as if it was photoshopped in. Has there been anything to indicate which division she's actually meant to be in (command red or sciences blue)?

It makes me wonder if they decided right at the very last minuet to change what division she's in (plus also you can't see the whole of her comm badge so there's no way to tell if she's been promoted).

  • Canonically she's Science Division since that's what we see in the episode. It will be interesting to see why it was changed. Jan 9, 2021 at 15:52
  • "you can't see the whole of her comm badge" - the comm badge is fully visible a little later, if slightly blurry, while Tilly just finishes her summary of Discovery's new orders. It looks like there is only one filled pip in there, which would probably indicate she's an Ensign. Jan 9, 2021 at 19:58
  • @BrianOrtiz it's weird as if she's still acting XO then she should be in command red. She's an engineer so if she's not now acting XO then she should be in engineering/operations yellow. I'm wondering if she's now Chief Science Officer Jan 9, 2021 at 20:51
  • 1
    @SpacePhoenix: Spock was first officer and wore blue, Data was second officer and wore yellow (although I think he did switch to red in an alternate reality/timeline when he became the first officer (?)). Quite possibly, specialized responsibilities (such as being the chief science officer) trump "mere administrative roles" when it comes to uniform colors. Also, there may be a similar confusion as with Stamets: He's not an engineer, rather a biologist, but the showrunners repeatedly seemed to forget about that when writing his scenes (or at least, he is equally skilled in engineering ... Jan 10, 2021 at 10:41
  • 2
    @O.R.Mapper Data wore red once in the prime timeline, the two parter when Captain Jellicoe took command of the Enterprise (Riker got relived of duty) Jan 10, 2021 at 11:34

1 Answer 1


They did recolor Tilly's uniform in post-production.

Several people have speculated that they want to keep their options open for Tilly's role in Season 4. There's precedent for science-section uniforms in the first officer role (e.g. Spock in TOS) so she may well remain first officer/XO.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.