'The Strain' Viral Teaser: Rats Herald The Arrival Of Guillermo Del Toro's Horror Series

The Strain, the vampire novel co-authored by Guillermo del Toro and Chuck Hogan that birthed a series of books, is going to be a series on FX, with del Toro scripting and directing the pilot. As the show movies forward, Carlton Cuse will act as show runner working with a cast that includes Corey Stoll, David Bradley, Mia Maestro, Sean Astin, and Kevin Durand.

(Actually, the original idea for The Strain was meant for a TV show, but del Toro ended up taking it to the page first, and now it has worked its way back to television.)

The first teaser for the show aired this past weekend during The Walking Dead, but if you weren't tuned in for that mid-series finale, check out the teaser spot below. Even if you were tuned in, you might not have realized what the strange spot was, as there's really no indication that it is for The Strain.