CONCEPTS
angelic/ethereal beings, the sun, sunflowers, the grim reaper, the undead, reptoids, martians, synthetic lifeforms, eternal return, knights, sea angels
TV TROPES
affably evil, ambiguously bi, an alien named bob, anti-villain, black mage, brilliant but lazy, creepy good, creepy mortician, deadpan snarker, don't fear the reaper, dull surprise, enraged by idiocy, even evil has standards, god of evil, grotesque cute, heavenly blue, it amused me, no face under the mask, not quite human, oblivious to love, surreal horror, the gadfly, the tease, word-salad humor