The Simpsons Season 26 Episode 4: Treehouse of Horror XXV

The latest installment of The Simpsons annual Halloween tradition, "Treehouse of Horror XXV," airs tonight on Fox.

In "Treehouse of Horror XXV," on the annual spooktacular Halloween special, Bart and Lisa are transported to a demon-filled alternate universe after Bart reads a set of Aramaic symbols he finds on the underside of his desk; Moe's "Clockwork Orange"-style gang is disrupted when Dum (Homer) falls for a girl (Marge) who wants him to give up the thug life; and, in an homage to "The Others," the Simpsons are visited by their former Tracey Ullman-era versions of themselves.

The voice cast includes Dan Castellaneta as Homer Simpson; Julie Kavner as Marge Simpson; Nancy Cartwright as Bart Simpson and Nelson; Yeardley Smith as Lisa Simpson; Hank Azaria as Moe; Harry Shearer as Skinner; Tress MacNeille as Dolph; and Pamela Hayden as Milhouse.

John Ratzenberger guest stars as himself.

The Simpsons, "Treehouse of Horror XXV," airs Sunday, October 19 at 8 p.m. ET/PT on FOX.