Invader Zim created by Jhonen Vasquez (See Genius) in 2001. Miss Bitters is the teacher of Zim and Dib's class. Extremely scary, she can materializes out of shadows. She spends her lessons "enlightening" her students of the horror's of the world around them, intent on crushing their dreams.
"Doom, doom, doooom! Go home now."
"So, right around there, a negative stigma was attached to the idea of surviving on human flesh."
"Be quick! I can only survive so long in the sun."