Bart Simpson's Treehouse of Horror #19

After being sentenced to serve detention in old library in the subterranean bowels at Springfield Elementary, Bart discovers The Book of the Dead and accidentally unleashes the Cthulhu on an unsuspecting Springfield. Then, Lunchlady Doris is finally fired for serving subhuman grade cuisine and replaced by the best the school food service industry has to offer. Soon the students are healthier and smarter than ever before, which can only lead to one thing - world domination! (And you thought we meant better state test scores.)

Characters: Agnes Skinner, Apu Nahasapeemapetilon, Barney Gumble, Bart Simpson, Captain McCallister, Carl Carlson, Chief Wiggum, Cletus (Simpsons), Comic Book Guy, Crazy Old Man, Cthulhu, Disco Stu, Doctor Hibbert, Dolph (Simpsons), Duff-Man, Edna Krabappel, Grampa Simpson, Groundskeeper Willie, Hans Moleman, Herman, Homer Simpson, Jasper Beardley, Jessica Lovejoy, Jimbo Jones, Kang (Simpsons), Kearney, Kent Brockman, Kirk Van Houten, Kodos, Krusty the Clown, Lenny Leonard, Lewis (Simpsons), Lisa Simpson, Lois Pennycandy, Luigi (Simpsons), Lunchlady Doris, Maggie Simpson, Marge Simpson, Martin Prince, Mayor Joe Quimby, Milhouse Van Houten, Miss Hoover, Mister Largo, Moe Szyslak, Ned Flanders, Officer Eddie, Officer Lou, Otto Mann, Patty Bouvier, Principal Skinner, Professor Frink, Rainier Wolfcastle, Ralph Wiggum, Reverend Lovejoy, Santa's Little Helper, Selma Bouvier, Snake (Simpsons), Snowball II, Uter, Wendell (Simpsons)