A chief engineer whose facial appearance is apparently shockingly unusual, but whose face is never actually seen. The engineering deck is often obscured by steam, and their responsibilities frequently require them to wear a full-face protective shield, while any time they’re encountered outside of engineering they’re shot exclusively from the back, or with some foreground object conveniently blocking their face. There’s a running gag where any time someone tries to describe them they just can’t seem to come up with the right word.  

A tactical officer who may or may not actually have a name. Unlike the chief engineer, above, no conspicuous concealment ever occurs; the show’s plot and dialogue are simply structured so that their name just happens never to come up, in such a way that a given audience member might not notice until someone points it out to them. The character is, of course, one half of the show’s primary canon ship. The show’s supplementary material is likewise phrased in such a way that the character’s name is never stated, with the character’s actor being credited as “also featuring”.  

A chief medical officer who manages to deploy a strangely topical anecdote from their implausibly extensive prior career in nearly every episode. These anecdotes are careful never to directly contradict each other, but in aggregate form a personal history which cannot conceivably be true. The possibility that they’re just spinning tall tales is ruled out by the fact that their anecdotes are frequently corroborated by comments from other crew members who’ve either heard about the incident in question or were present themselves for some (generally unspecified) reason.  

A communications officer and a science officer who are played by the same actor. They’re never seen on screen together, even while off duty. (e.g., at any gathering where one of them appears, the other “couldn’t make it”.) The circumstances that prevent them from ever being in the same room are often set up to lead the audience to suspect that they’re looking at one character pretending to be two separate people for some unspecified reason, but only characters who aren’t members of the crew ever notice the fact that they’re identical apart from the colour of their uniforms; the other crew members simply don’t see the resemblance.  

charlie, acting as nixon: gay marriage is legal now

reporter: mr president???

the danvers sisters can… and will 😤