First non-enemy NPC? Probably one of the Alik'r who were in the cave, I started off trying to sneak in some shots while still behind the waterfall, the most I've heard him say before they became hostile was for his men to hold.
WinterWolf : So, you killed Lucan and you just left it like that ? Lucan is the most important merchant in the game and you don’t want him dead but alive. He is the only one carrying 10k in his pocket to buy stuff from you in one-stop-sale-buy in Skyrim ?
They fixed that with the latest patch. It's no longer 12,000 but now just 2,000 like the rest of the busier merchants.
Still - my ALL TIME favorite kill was Barnabas, that damned talking dog of Vile's. SOOOOOO annoying. On the second part of the quest, I had to tell him to go away 'cause his barking was interferring with my sneak.
Barbas, he kept pushing me around, but I still spared him so I could get the Clavicus Masque.
Some farmer saying he was off to join the Stormcloaks, I pressed the wrong button and hit him with a shout and I got a bounty. Had to silence him, before he ran off to tell the Guards, then a Noble with a bodyguard saw me, had to kill them and then the bloody horse was apparently a valid witness.
Three people and a horse had to be killed cause I pressed the wrong button. Funny how things like that happen.
What's worse is that the buttons on the PS3 controller are overlapping the back, just rest the controller and the shout button is pressed, you aren't safe with anything aggressive.
The Imperial bitch who sentenced me to the block. I make sure I kill her first and let Ralof kill the other guy.
I don't know if it's the same Legate or not, looks and sounds like her but she seemed very oblivious to the Helgen incident and brings up how Tullias has spoken of this and that.