Dean Ambrose, until he broke off from The Shield and become this Lunatic Fringe character.. I could become a fan soon again though.
Sasha Banks in NXT, until she became an awkward, annoying, unattractive creepy little dweeb.
Triple H, until he became a corporate stooge.
Bella Twins, until I realized they're totally worthless.
Bret Hart, when he went to WCW, a show I never watched.