Last week gave us our best look yet at Guillermo del Toro's forthcoming vampire thriller 'The Strain,' releasing the first bloody bits of footage in a brand-new trailer. But with the July 13 premiere fast approaching, the Master demands more. Feast on the latest trailer, as well as the first image of the show's primary big bad!

The latest trailer for 'The Strain' proves a bit more generous in showing off the vampire-esque creatures that begin the titular outbreak, promising that New York City, and subsequently the world, will fall victim in a matter of time. Moreover, Entertainment Weekly served up an interactive look at "The Master," the large vampire figure working mostly from the shadows, but whose arrival heralds the beginning of the end.

Based on del Toro’s 2009 novel trilogy, ‘The Strain’ follows Dr. Ephraim Goodweather (‘House of CardsCorey Stoll), a CDC operative who investigates a mysterious viral outbreak with hallmarks of an ancient and evil strain of vampirism. As the strain spreads, Eph, his team and an assembly of everyday New Yorkers wage war for the fate of humanity itself.

Also present among the cast are Regina King, Sean Astin (‘Lord of the Rings‘), Roger Cross (‘24‘), Leslie Hope, Robert Maillet (‘Pacific Rim‘), Mia Maestro (‘Alias’), Lauren Lee Smith, Miguel Gomez, Kevin Durand (‘LOST‘), David Bradley (‘Game of Thrones,’ replacing John Hurt) and Richard Sammel (‘Inglorious Basterds’). Former ‘LOST’ and current ‘Bates Motel‘ showrunner Carlton Cuse will helm FX’s adaptation from a screenplay by del Toro and novel co-writer Michael Hogan.

'The Strain' is shaping up to be a major event for FX, so check out the latest trailer above, as well as "The Master" below, and tell us if your blood is boiling for the July 13 premiere!

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