We want Dunmer spouses!
Why don't make the followers marriable, I understand two of them are Dunmer.
But I guess that's how Beth wanted it. Practically no interesting NPC can be married, even if he/she has the same VA as someone who can. Evil. Pure evil.
Anyone know if you can marry that werewolf girl rakel? She says the words "It's a fine day with you around" which usually implies that you can marry them.
It doesn't imply that. You get that from practically all npcs you've helped voiced by a certain VA, even if they can't be amrried (Ingun Black-Briar is an example.)
As a rule of thumb, avoid the Elder Scrolls Wikia like the plague. It's known to make up random garbage, fairly frequently. Use the UESP for anything gameplay-related.
I don't think there are any named NPCs who should respawn. UESP certainly doesn't mention anything about NPCs respawning, nor have I experienced this in 1000 hours of gameplay. Jorrvaskr should respawn, but not the Companions themselves.
In fact, there IS a bug where Skjor respawns...
And I know another example of a named NPC who respawn: Movarth Piquine. But those are bugs. Named NPCs don't respawn. And why would they? Dead people don't come back to life...