I succeeded in my longtime goal of getting Haris Pilton killed. Tinkerbell is immortal though, she drops to 1 hp and stops taking damage.
The 70 elite dragon blood elf in the tavern that ports you to CoT is also not very elite, can kill her really fast as a ghoul, haha. She interestingly also doesn't become a ghoul (surprised Blizz had the foresight to make her unaffected by the plague), she actually dies and has loot sparkles but I have not seen her actually drop anything. Don't mess with the 62 elite Broken guy in the market area though, he hits for over 1k, haha.