Heh, Camper from KOTOR is definitely in — my story in the Empire Strikes Back From A Certain Point of View anthology from last fall notes that asteroids are rated for their propensity to have space slugs on something called the Vandrayk Scale. That doesn't mean that he lived when the comics said he did; it's just fun for those who recognize the name, and if anyone was the historical leader in slug research, it probably would have been him. Obviously, Thrawn — and what I did in Canto Bight with Mosep Binneed, a.k.a. the "Monkey Jabba" from Marvel's original series — is on a different level, but all those appearances (and the Vandrayk mention) were cleared with the Story Group.
My streaming-show era novels for Trek have similar elements — Enterprise War has a sizable role for the nurse from Early Voyages. Again, doesn't mean all those comics stories happened as told, but at least today's readers can say there was a Carlotti on the crew.