Worst Traitors in Gaming? [SPOILERS INSIDE]

WATCH_DOGS SPOILERS (I indicate this because it is more recent that most games mentioned here)

Does Jordi from Watch_Dogs count? He almost shoots Aiden, but he also kinda tried to get him out of the trouble and stuff. Either way, it was surprising, he shows up at the end and I'm saying "Hell, yeah I got my homie to back me-- wait what. Oh, you fucker; I really wanted to like you."

Then I smashed the fuck off the buttons during the QTE.

well,Vergil from DmC: Devil May Cry

The one from Mirror's Edge. Nonsense, that's all.

EA,Ubisoft all the times Bethesda and Capcon sometimes

If you want a traitor from ingame you can consider:
LGhain from DA:O

My friend in Tomodachi Life.

Mofo tried to steal muh girl on the beach.

Yoshimo from Baldur's Gate 2. That game is so well written that I totally believe in Yoshimo (more than on any other NPC), i forgive the character (even i make a mod for bring him back) but the moment of the betrayal was a big surprise!

PAVEL IS THE BEST TRAITOR EVER

dragon age 2 - anders.