My head canon is that K'Ehleyr was Miss Q (what female Q is referred to in the script) posing as a Klingon based on one line of dialogue in “The Q and the Grey”. Also that Suzie Plakson played both characters.
And that wasn’t the original co-star. Maya Erskine was a replacement for Jane when Phoebe Waller-Bridge left the production. Waller-Birdge was originally cast Jane. So the characters would have been a biracial couple.
I glanced briefly at the list of TV examples. As a Trekkie I must point out that in “The Gamesters of Triskelion” (the version that got filmed) we are told the Thrall assigned to Uhura is ordered to do whatever he wants and that Uhura must comply. All you see is an off-screen cut away with screaming in the background. This isn’t usually discussed among the fandom but that was clearly rape. Uhura was raped in that episode. Let that sink-in.
As an Asian American, I am truly sorry for that. I can’t personally speak well on the subject but I always encourage people to read this NPR article from 2017.
During Red Alert, the walking attraction for Universal Studios: Fan Fest Nights, the warp core brings to have issues. You see plasma exhaust and the two crewmen in Engineering yell “reverse the polarity”.
Or we could do a Job Bluth and get buried alive to land on a magazine cover.