Linda Louise Culkin, who engaged in a “persistent and malevolent” cyberstalking campaign against Kevin Spacey, has been sentenced to four years in prison.

Linda Louise Culkin, 55, threatened to cause physical harm to Kevin Spacey.

Last November, Linda Louise Culkin pleaded guilty to charges including posting threatening letters and sending false information regarding explosives.

Kevin Spacey, 55, said it was “difficult to measure the degree of terror” caused.

The actor was not present in the District Court in Boston but his victim impact statement was read out in court.

Kevin Spacey is best known for his Oscar-winning roles in The Usual Suspects and American Beauty (photo Facebook)

Responding, Linda Louise Culkin apologized for her actions: “I have some mental health issues.”

“I was overzealous. I cop to that. I fully apologize to him. I didn’t mean it to be so harsh,” she said.

Linda Louise Culkin was arrested in January 2012. Her apartment, in the town of Quincy, Massachusetts was reported to have images of Kevin Spacey with his eyes blacked out and numerous copies of a page entitled Killing Kevin Spacey.

The judge ordered her to pay Spacey $124,000 to compensate him for the bodyguards he hired during the two-year stretch when she harassed him.

Given the time already spent in prison following her arrest, Linda Louise Culkin has approximately 18 months left of her four-year sentence.

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