The Haunting of Hill House terrifies everyone who watches it. And when I say everyone, I mean everyone, this even including the actors who played the characters in Netflix's latest hit.

Yes, despite learning the script and knowing full well that the blood smeared over them was completely fake, some of the stars still found themselves freaked out on-set.

In an interview with the Metro Online, Oliver Jackson-Cohen, who played Luke Sanderson, and Elizabeth Reaser, who played his older sister Shirley, both admitted they felt a little uneasy during filming.

Speaking about working on the show, Oliver confessed the series got in his head, saying: "Obviously you know, because we’re actors, we’ve got stupid imaginations. In prep, I started to think that someone was sat at the end of my bed in the night and stupid shit like that."

Reaser agreed, stating that she found it hard to sleep while acting in the horror. "I had no ghostly interactions but I feel like there’s something that happens to your unconscious when you’re pretending like this for nine months," she said. "It’s more not being able to sleep, feeling crazed … It’s like your body doesn’t know that you’re pretending."

Oliver added: "There was like a week when all of us…we shot for nine months and I remember calling you [Elizabeth] one day and you just hadn’t slept. I just can’t sleep because, like you say, when you’re drumming that stuff up for so long, you kind of get a hang-up on it."

The Haunting of Hill House sees the Crain family and their five children forced out of their old mansion on Hill House by paranormal activity, only for the children to return as adults, 26 years later, to face their demons.

The ten-part Netflix horror drama is loosely based on the 1959 novel of the same name by Shirley Jackson and was released on October 12, 2018.

When the series hit the streaming service, it immediately became a fan favourite. It currently has a 92 per cent critic score on the review aggregator Rotten Tomatoes and is making its way towards the top of many people's must-see horror shows.

Data provided to Business Insider by Parrot Analytics revealed the series was the third-most "in-demand" horror show with audiences, behind only hit shows The Walking Dead and American Horror Story.

And it's not just Netflix fans the horror has impressed. The modern master of horror himself, Stephen King, recently heaped praise upon the show, stating it was "close to a work of genius".

Writing on Twitter on October 16, King wrote: "THE HAUNTING OF HILL HOUSE, revised and remodelled by Mike Flanagan. I don’t usually care for this kind of revisionism, but this is great. Close to a work of genius, really. I think Shirley Jackson would approve, but who knows for sure. [sic]"

So, if you haven't watched it yet, what are you waiting for? Sure, you might get the odd bit of insomnia, but it's a damn good watch.

The Haunting of Hill House terrifies everyone who watches it. And when I say everyone, I mean everyone, this even including the actors who played the characters in Netflix's latest hit.

Yes, despite learning the script and knowing full well that the blood smeared over them was completely fake, some of the stars still found themselves freaked out on-set.

In an interview with the Metro Online, Oliver Jackson-Cohen, who played Luke Sanderson, and Elizabeth Reaser, who played his older sister Shirley, both admitted they felt a little uneasy during filming.

Speaking about working on the show, Oliver confessed the series got in his head, saying: "Obviously you know, because we’re actors, we’ve got stupid imaginations. In prep, I started to think that someone was sat at the end of my bed in the night and stupid shit like that."

Reaser agreed, stating that she found it hard to sleep while acting in the horror. "I had no ghostly interactions but I feel like there’s something that happens to your unconscious when you’re pretending like this for nine months," she said. "It’s more not being able to sleep, feeling crazed … It’s like your body doesn’t know that you’re pretending."

Oliver added: "There was like a week when all of us…we shot for nine months and I remember calling you [Elizabeth] one day and you just hadn’t slept. I just can’t sleep because, like you say, when you’re drumming that stuff up for so long, you kind of get a hang-up on it."

The Haunting of Hill House sees the Crain family and their five children forced out of their old mansion on Hill House by paranormal activity, only for the children to return as adults, 26 years later, to face their demons.

The ten-part Netflix horror drama is loosely based on the 1959 novel of the same name by Shirley Jackson and was released on October 12, 2018.

When the series hit the streaming service, it immediately became a fan favourite. It currently has a 92 per cent critic score on the review aggregator Rotten Tomatoes and is making its way towards the top of many people's must-see horror shows.

Data provided to Business Insider by Parrot Analytics revealed the series was the third-most "in-demand" horror show with audiences, behind only hit shows The Walking Dead and American Horror Story.

And it's not just Netflix fans the horror has impressed. The modern master of horror himself, Stephen King, recently heaped praise upon the show, stating it was "close to a work of genius".

Writing on Twitter on October 16, King wrote: "THE HAUNTING OF HILL HOUSE, revised and remodelled by Mike Flanagan. I don’t usually care for this kind of revisionism, but this is great. Close to a work of genius, really. I think Shirley Jackson would approve, but who knows for sure. [sic]"

So, if you haven't watched it yet, what are you waiting for? Sure, you might get the odd bit of insomnia, but it's a damn good watch.