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.

A rep for Scott tells us … he died after a battle with leukemia.

It was recently revealed by ‘TWD’ showrunner Angela Kang at the show’s panel at New York Comic-Con that Wilson — along with former stars Sonequa Martin-Green and Jon Bernthal — would be returning for the upcoming new season.

Wilson’s Hollywood career began in 1967 when he landed a role in the classic film, “In the Heat of the Night.” He went on to appear in several other legendary movies like “In Cold Blood,” “The Great Gatsby” and “Dead Man Walking.”

Scott earned a Golden Globe nom for Best Supporting Actor for playing Capt. Billy Cupshaw in the 1980 film, “The Ninth Configuration.”

In more recent years, Wilson’s starred in the movie “Pearl Harbor” and had a recurring role on ‘CSI’ … but became a fan favorite playing the lovable Hershel on AMC’s smash hit ‘Walking Dead’ series.

He was 76.

RIP