Kevin Costner didn’t tune in for his character’s final appearance on “Yellowstone” on Sunday night.

On SiriusXM’s “The Michael Smerconish Program,” Costner admitted, “Well, I’m going to be completely honest. I didn’t know it was actually airing last night.”

He continued, “That’s a swear-to-God moment. I swear to God. I mean, I’ve been seeing ads with my face all over them and I’m thinking, ‘Wow, I’m not in that one.’ ‘I’m not in this season,’ but I’ve been looking at it, but yesterday I didn’t realize what I really have, my attention has been focused on what I have to do and I have some calls to make.

“Sometimes I’m like a passenger in my life, you know, there’s a lot going on,” Costner added. “And someone said, you know, did he show up last night? And I was like, ‘Hmm, okay.’ So no, I actually found out this morning.”

Kevin Costner said on SiriusXM’s “The Michael Smerconish Program” that he hadn’t seen his character’s exit from “Yellowstone” and “didn’t know it was actually airing last night.” (Slaven Vlasic/Getty Images for SiriusXM)

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Sunday night’s episode featured Costner’s character, John Dutton, who appeared to have been shot and killed after being discovered by Kelly Reilly and Luke Grimes’ characters, Beth and Kayce Dutton.

The death appeared to be a suicide, but there appears to be some suspicion that was actually murdered.

“I didn’t see it. I heard it’s a suicide, so that doesn’t make me want to rush to see it,” Costner said of the episode.

When Smerconish said that Costner’s character didn’t seem like a character who would commit suicide, the actor responded, “Well, they’re pretty smart people. Maybe it’s a red herring. Who knows? They’re very good. And they will do it.” find out.”

Costner said the fact that his character’s death was an apparent suicide “doesn’t make me want to rush into it,” but added that the “Yellowstone” creative team are “pretty smart people” and will figure out what to do with the show. (Amy Sussman/Getty Images)

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The “Dances with Wolves” star also said he didn’t know how his character would exit the show.

“No, no, that’s their business. I gave it five seasons. I didn’t even know it was going to last that long. There were a couple of times where I talked about possible endings for me,” he said.

He added: “Listen, they’re smart people. Whatever they do, they’ll figure it out. But I came up with two possible endings when I wasn’t going to do it while it lasted.” was.”

His co-star Grimes, who plays Costner’s son on the show, previously told Fox News Digital. “None of us saw it coming.”

Luke Grimes said the cast of “Yellowstone” didn’t know anything about Kevin Costner’s departure. (Getty Images)

“I didn’t see it. I heard it’s a suicide, so that doesn’t make me want to rush to see it.”

—Kevin Costner

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“None of us knew when that was going to happen or how. And then, you know, it happened in a way that I guess none of us, you know, saw it coming. But we were all preparing for it at some point. And, You know, what character does what. And it was really fun to be on that journey with the audience,” he said.

Grimes said he was “a little disappointed” because the cast of “Yellowstone” didn’t know Costner wouldn’t be returning. conclude the fifth season.

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“I guess I was probably a little disappointed that we didn’t know he wasn’t coming back,” she began. “I think there could have been a better send-off if we had done it differently. It was, you know, it was more of a surprise than anything else.”

“But like I said, that’s above my pay grade. And our job is to just show up and do what’s on the page and do it to the best of our ability,” Grimes said.

Grimes, who plays Kayce Dutton on “Yellowstone,” told Fox News Digital that the cast always thought they would end the show without Costner’s character, John Dutton, but the way it played out, “none of us saw it.” come”. (Michael Buckner/Deadline/Penske Media via Getty Images)

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On “The Michael Smerconish Program,” Costner said, “I didn’t leave the show.”

He explained that the issue came down to schedules and contracts, in part with his “Horizon: An American Saga” film cycle.

Costner said he “loved the show,” but the long wait between seasons began to affect other projects he was hired for. (Emma McIntyre/Getty Images for SCAD)

“Well, they’re pretty smart people. Maybe it’s a red herring. Who knows? They’re pretty good. And they’ll figure it out.”

—Kevin Costner

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“Yeah, I didn’t really have to leave anything behind. There were loopholes that were there. There were contractual things that would allow both things to be done, but since both things were contractual, you had to leave room for things.” another thing. There was space, but it was difficult for them to keep to the schedule,” he explained.

“It seemed like it was too hard for them to do it. There was a time there, what happened, you can deal with it. But no one, I didn’t leave. I didn’t leave the show. OKAY?

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“I had made a contract to do all three,” he continued. “There was one contract to do all three things. And in about an eight-month period, two more different types of contracts were being negotiated. Not at my request, but at their request to try to do things.

“I accommodated them on those two additional things that changed. Things change, and finally when they wanted to change it a third time, because I had my obligations to do, I had 300 people waiting for me, I couldn’t help them anymore. I just couldn’t help them. But I didn’t leave the program. There wasn’t, there was just, you know, everyone has to live up to what they say they’re going to do. And it doesn’t matter what business you’re in.”

Costner has said he’s still open to returning to the “Yellowstone” show if it works out.

The “Horizon” star said he’s still open to returning to “Yellowstone.” (Matías Nareyek/Getty Images)

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In September, he said Entertainment tonight“It’s been a wonderful part of my life, you know, making ‘Yellowstone’. And who knows, sometimes some things have a way of coming back. I haven’t seen that trail of dust coming towards me, but I’ve always been open to what that I started and the five seasons were a lot for us. I think, you know, that story is not over.”

Fox News Digital’s Janelle Ash, Larry Fink and Emily Trainham contributed to this report.