AMC and The Walking Dead are joining forces with the American Red Cross for a nationwide blood drive. To help the cause, they've recruited Co-Executive Producer and Special FX Makeup Designer Greg Nicotero to zombify some familiar faces. Ever wonder what The Hobbit director Peter Jackson would look like as a walker? How about The West Wing's Jimmy Smits or EXTRA's Maria Menounos? Check out this gallery now to see which celebrities have received the full undead treatment.

Want to win a trip to The Walking Dead set? Enter the AMCGiveBlood.com sweeps. Use Your Brains. Give Blood.

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The Walking Dead returns Sun., Oct. 14 at 9/8c.