Elantris/YMMV

• Complete Monster: Dilaf. His backstory would have made him somewhat sympathetic, but it's clear that by the time of the novel he's too far gone into genocidal insanity for the audience to want anything for him but a nice Karmic Death. He gets it.
• Magnificent Bastard: Hrathen.
• Nightmare Fuel:
  • A city full of insane zombies, where any cut, bruise, or stubbed toe hurts forever, slowly driving you toward madness.
  • Also, anything to do with Dakhor magic. They grow their bones into the shapes of runes through an extremely painful process. That's Nightmare Fuel enough already; then you find out about the techniques that are Powered by a Forsaken Child...
• What Could Have Been: Sanderson ended up changing several things from his original conception of the novel. Raoden was originally supposed to have been in Elantris for awhile, rather than a newcomer; he was originally supposed to have a younger brother "the Mad Prince" who would act as a supporting villain, but was cut for being largely extraneous to the novel (though Sanderson admitted to liking the character)- Telrii ended up taking over the meatier portions of his role; Hrathen was originally supposed to be a Dula who converted to Shu-Dereth and betrayed his own people to the Fjordell- this was changed because it undermined the ending of Hrathen's arc where the very Fjordell Hrathen turns against his people and his prophet-king to do what's right.