Actor Scott Wilson, who played Hershel Green on AMC’s The Walking Dead, died at age 76 on Saturday.

According to TMZ, which cited Wilson’s representative, the actor died due to complications from leukemia.

Wilson portrayed farm owner and veterinarian Hershel for four seasons (2011-2014) on the zombie show. His character was killed off at the end of the fourth season of The Walking Dead. 

Wilson also famously starred in classic movies like In the Heat of the Night, In Cold Blood, The Great Gatsby, and Pearl Harbor. He was nominated for a Golden Globe for Best Supporting Actor in 1980 for his role in the horror film The Ninth Configuration. Wilson also had a recurring role on CSI: Crime Scene Investigation from 2001 to 2006.

More recently, Wilson played Abel Johnson in the Netflix supernatural mystery series The OA. 

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Dozens of tributes to the actor poured in over the weekend: