Those two farmers outisde of Whiterun who you have to convince to fix Cicero's cart.
Stupid non-essential essential NPCs.

Really? What do you have against them? I simply
Spoiler do Delayed Burial for Cicero and be on my way, so I never go back.. is it because of how he refuses to help Cicero?
Delphine, after she outlives her usefulness.
I have never killed her, but I'm thinking on my current playthrough I will. I remember
Spoiler feeling betrayed and disheartened when they basically said I'm no longer welcome in Sky Haven until I kill Paarthurnax.. they're not my friends after that
In one of my playthroughs, after the "Peace Talks", I went out the front entrance of High Hrothgar and Delphine had just gotten to the bottom of the stairs, I ran up to her and shot her off the side of the mountian with unrelenting force.
Thats what you get for demanding me to kill my buddy!
Question: Can you still do the Civil War questline after you do Season Unending? I might actually do that to her if I'm able.
Every single one of the Thalmor. I would gladly kil them but they just keep respawning. Oh and the Stormcload commanders in the camps. There is absolutly no reason why they should be marked as essential.
While I agree with you.. your signature taunts me
Also.. a lot of people that I normally pass are wanted dead in this thread, some of which I'm surprised see in this thread. I don't have a problem with a lot of them, but others I agree with like Maven Black-Briar, Delphine as seen above, I pay little attention to Nazeem and the Preacher.. might be a few others out there. Honestly, I don't go kill anyone in any of my games except when I do the DB questline but I suppose I could start with those that deserve it..

Or try to.