Watching Aliens: Romulus got me thinking—how would the Doctor handle a Xenomorph?
Honestly, I’m not sure they could. It would completely depend on the circumstances. But in most cases, I think it’d be treated like a Midnight-style entity: something unknowable and dangerous, best left undisturbed. The Doctor’s solution might just be, “Let’s get out of here, seal it off, and make absolutely sure no one ever comes back.” Maybe even nuking the site if it came down to it.
Because the Xenomorph isn't something you can reason with or bargain with. You can't appeal to its morality or offer it peace. It’s a perfect hunter—adaptive, cunning, capable of learning and setting traps. The kind of threat that would absolutely push the Doctor’s pacifist ideology to the edge.
But without fail, before leaving, you know the Doctor would have a moment of awe. A soft little:
“I know we’re running for our lives—but just look at it.”
Cue ten seconds of quiet admiration. “It’s beautiful…”
Before immediately sprinting in the opposite direction.