Charlie Sheen is speaking out after the assassination of Turning Point USA founder Charlie Kirk, calling the killing a devastating blow to the country’s future.

The former "Two and a Half Men" star shared during an appearance on Logan Paul's "IMPAULSIVE" podcast that the impact Kirk had could’ve "easily" changed the course of American history, saying, "It was like a giant star in the night sky just went dark."

As the father of five continued to reflect on Kirk’s death, he added, "I’ve got five kids and three granddaughters, and that was one of my first thoughts – fatherless children, husbandless wife."

CHARLIE KIRK ASSASSINATION: ARNOLD SCHWARZENEGGER, JOSH DUHAMEL, JILLIAN MICHAELS DENOUNCE POLITICAL VIOLENCE

Paul called Kirk "A guy I always respected," adding, "I didn’t agree with everything he said, but he always put himself out there and opened the conversation up." Sheen replied, "I did too."

Paul added, "He was this articulate young man – I even felt like he could be president one day."

"A lot of people did," Sheen agreed.

"Holy s---, the course of American history may have just been changed," Paul continued. Sheen replied, "Seismic."

"He didn't belittle anyone, he didn't demean anyone, he didn't embarrass anyone," Sheen said of Kirk. "He didn't go there to, like, be a smarty pants and make you look stupid. He was just like, ‘Hey, man, OK, here’s what I've prepared. Here's what I know, here's what I believe. Give me your side of it.'"

Sheen additionally remembered his Sept. 10 podcast appearance with Joe Rogan and when they first heard the news about Kirk’s death.

He and Rogan were recording an episode of "The Joe Rogan Experience" when the pair paused as staff alerted them to the breaking news. 

"We go out into the lobby and one of his security guards says he just died," Sheen said.

From there, Sheen and Rogan headed to a bathroom. It was at that moment, away from cameras and mics, that Sheen recalled Rogan telling him, "We need to go back on the air and talk about this."

Sheen responded, "Yes we do."

In his conversation with Paul, Sheen paused to discuss the weight of the harrowing moment.

"It’s just awful, I don’t remember what I said to Joe," he confessed. "Something about if this is where we’ve wound up, this can’t be where we stay. Like, what words can we all attach to this that make it feel better for us or his family, or just the moment – they haven’t been written, have they?"

JOE ROGAN SHOCKED ON-AIR BY CHARLIE KIRK’S DEATH, LAMENTS LOSS OF 'REASONABLE' LEADER WHO PROMOTED OPEN DEBATE

"There's going to be a lot of people celebrating this," Rogan told Sheen during the podcast. "It's so scary. It's so dangerous too, to celebrate or to in any way encourage this kind of behavior from human beings. … He's not a violent guy. He was talking to people on college campuses."

He added that Kirk "wasn't even particularly rude. He tried to be pretty reasonable with people."

"Everything I saw seemed reasonable," Sheen replied.

"He was a very intelligent guy," Rogan said. "Whether you agree with him or don't, and there's a lot of stuff that I didn't agree with him on. That's fine. You're allowed to disagree with people without celebrating the fact they got shot."

On Sept. 10, Kirk was shot and killed during a speaking engagement in Orem, Utah. Authorities later identified Kirk's murder suspect as Tyler Robinson, 22.

Robinson has been charged with aggravated murder, two counts of obstruction of justice for hiding the rifle and discarding his clothing, two counts of witness tampering for instructing a roommate to delete texts and stay silent and one count of committing a violent offense in front of children.