Stephenson died of cancer in 2004 at the age of 47.

Ferns portrays a miner on the show.

Chernobyls a hard story, especially for me, Ferns says, in an interview with ScotlandsDaily Record.

Alex Ferns

Credit: Gareth Cattermole/Getty Images

Ill tell you why its a hard story.

My uncle Robert used to work for the Scottish Water Board.

When Chernobyl happened, the poisoned rain came over the west and center of Scotland.

Not one of them reached the age of 50, including Robert.

They all died of cancer.

I think thats a fing tragedy.

Thats a reflection of the bigger picture of Chernobyl that we see in the show.

Some people just dont fing care about anybody else.

Its personal to me, it really is.

Chernobylstars Jared Harris, Stellan Skarsgard, and Emily Watson.