Though we got to see the sequence in full at Comic-Con 2013, Guillermo del Toro's contribution to 'The Simpsons'' upcoming Halloween special, "Treehouse of Horror XXIV," might make the episode the scariest yet. The visual horror master dug through the vaults to present an extended opening sequence chock full of classic monsters and those of his own design, so who made the cut?

You'll have to wait until October 6 to see the sequence in its entirety for yourself, but we caught almost all of Universal's classic monsters, along with zombies, horror icons Alfred Hitchcock and Stephen King, along with a number of del Toro's own creations, from 'Pan's Labrynth' to 'Hellboy' spoofs. Don't worry, there's even a few 'Pacific Rim' references thrown in for good measure.

Per The Hollywood Reporter, his year's "Treehouse of Horror" special will divide between the "Fat in the Hat" tale of Homer Simpson wreaking Springfield havoc by rhyming his take on Dr. Seuss, the two-headed adventures of Bart and Lisa in "Dead and Shoulders," and Mr. Burns' travelling 1930s circus act "Freaks No Geeks."

Elsewhere, ‘The Simpsons’ season 25 will feature appearances from returning ‘Parks and Recreation‘ star Amy Poehler, 'SNL''s Kristen Wiig, ‘Harry Potter’ vet Daniel Radcliffe, ‘Arrested Development‘ star Will Arnett, ‘Mad Men‘ star Elisabeth Moss, comic legend Stan Lee, and ‘The Newsroom‘ creator and acclaimed writer Aaron Sorkin.

You can preview the latest 'Simpsons' episodes in the video below, and tell us in the comments if you'll tune in for the October 6 Halloween special to see Guillermo del Toro's work in action!