 Scott Wilson, who rose to fame playing murderer Robert Hickock in 1967’s In Cold Blood and more recently was a series regular playing veterinarian-turned-farmer Hershel Greene on The Walking Dead, has died at 76 due to complications from leukemia. It was recently revealed by 'TWD' showrunner Angela Kang at the show's panel at New York Comic-Con that Scott -- along with former stars Sonequa Martin-Green and Jon Bernthal -- would be returning for the upcoming ninth season, which premieres Sunday. Hershel from 'The Walking Dead' Scott Wilson Dies at 76 
 
 'The Walking Dead' Actor Scott Wilson Dies at 76 
 
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 Scott Wilson -- a veteran actor with more than 50 movie credits, but best known recently for his role as Hershel Greene on "The Walking Dead" -- has died ... TMZ has learned. He went on to star in "In Cold Blood" and appear in several other legendary movies like "The Great Gatsby" and "Dead Man Walking." RIP buddy.
– Walking Dead star Scott Wilson has died of complications of leukemia at the age of 76. Scott's career spanned more than five decades and included 50 movie credits, but he was perhaps best known for his portrayal of Herschel Greene in AMC's zombie thriller. Wilson's rep tells TMZ that he was "a national treasure, a calm voice, and a gentle spirit to everyone who came in contact with him." In an odd turn of events, TWD's showrunner announced Saturday night that Wilson would be returning for its ninth season, reports EW, even though his character was previously killed off. Wilson had already completed that filming; news of his death came just hours later.