Scott Wilson has died aged 76.

The Walking Dead actor – who was known for playing veteran Hershel Greene in the AMC post-apocalyptic horror series – has passed away following complications from leukaemia, his representative Dominic Mancini has told TMZ.

Dominic described the actor – who had more than 50 movie credits to his name – as a “a national treasure, a calm voice, and a gentle spirit to everyone who came in contact with him.”

It was recently confirmed that the star would be returning to the upcoming ninth season of the show despite his character being killed off in season four.

A representative for AMC told The Hollywood Reporter: “Scott will always be remembered as a great actor, and we all feel fortunate to have known him as an even better person. The character he embodied on ‘The Walking Dead’, Hershel, lived at the emotional core of the show. Like Scott in our lives, Hershel was a character whose actions continue to inform our characters’ choices to this day. Our hearts go out to his wife, family, friends and to the millions of fans who loved him. Scott will be missed.”

And the official Twitter account for ‘The Walking Dead’ graphic novel – which the show is based on – tweeted: “We are deeply saddened to report that Scott Wilson, the incredible actor who played Hershel on #TheWalkingDead, has passed away at the age of 76. Our thoughts are with his family and friends. Rest in paradise, Scott. We love you.”

Thoughts and prayers go out to Scott’s family, friends and fans.