NEW YORK, July 24 (UPI) — Criminal Minds wrapped up its 19th season Thursday and has already been renewed for Season 20, but one major fan favorite character will not be back for the new episodes.

Spoilers ahead.

Zach Gilford, who plays serial killer Elias Voit, told UPI in a recent Zoom interview that his four-season arc has ended on the show — at least for now.

“Unfortunately, Voit’s not in the next season,” Gilford said.

“I’m stuffed in the cellar. I don’t know if I’ll ever come back. If they want me, I would love to, but I think they kind of wanted to let this story end and not draw it out longer than it needs to, to ensure if it makes sense for Voit to show up in some way.”

Season 19 kicked off with Voit languishing behind bars, paying the price for the lives he took.

“He’s not doing great. I think he’s kind of just ticking off the days on the wall and he’s a bit of a rat in a cage and I think he’s just kind of like acquiesced to, this is the rest of his life and he just has to go through it,” Gilford said.

“He has hope that he’ll see his family. I think he just is a little delusional when it comes to his family — that someday he’ll get them back. But I think he just kind of is like, ‘Cool, this is the rest of my eternity, sitting in this box and talking to these people and trying to make amends or give them closure and it just all sucks, but I deserve it.”

The finale saw Voit get his wish, escaping prison to rescue his daughter Hollie (Allison Nordahl) from James Crowley, a mass murderer also known as “The Fan” because of his obsession with Voit.

“He does not want to get reconnected with his family through having to save them and worry that they’re in danger and I think what’s even worse is it’s not just like some random person who’s potentially going to harm his family, but it’s someone who’s the result of Voit’s actions because he’s The Fan,” Gilford said.

“A lot of the season is him really dealing with the fact that, not only did he hurt people and families, but, also, like he’s now created more monsters.”

Although his ex-wife and teen daughters are in the federal witness protection program, Voit knows there are always vulnerabilities that can be exploited if a criminal wants to harm someone.

“He thought they were ‘safe in a way-ish.’ He never really trusts the FBI or the BAU and I think it’s always in the back of his head that something could happen to them, especially now with the podcast and all this celebrity that he’s gaining,” Gilford said.

“I think it’s eating at him more and more that his family can’t stay like that. There’s no way they’re going to be able to stay ahead and people are going to find out who they are, and it’s not going to be good for them.”

When Hollie stabs Crowley (Justin Kirk) to death, Voit lies to investigators and says he did it to protect her. He is then hauled off to maximum security prison where he will no longer be allowed to help members of the Behavioral Analysis Unit solve grisly homicides.

Even though he saves the girl’s life and protects her from prosecution, Voit doesn’t believe he can ever make up for what he has put her through.

“I don’t think he’ll ever feel like he’s redeemed himself. All he wants is his daughters, specifically Hollie, not to bear the weight of his sins,” Gilford said.

“He knows that she loves him and she knows that he loves her, but he’s still done what he’s done and I think he knows there’s really no way to reconcile that.”

Gilford said he was surprised when his one-season role was so well-received by fans that the creative team decided to keep him around for three more seasons.

“[When there was] a couple of episodes left in the first season, they told me, ‘Well, we haven’t figured out how we’re going to end the season, but we really like you, so we decided we’re not going to kill you,”‘ the actor recalled.

“I’m like, ‘No, great.’ Then I did Season 2, which was a lot of fun. Once they decided to have me come back for Season 3, we were going to kind of need this fourth season to kind of complete the arc,” Gilford said.

“What happened in Season 3 with me kind of losing my memory, about my brain chemistry being changed, and now I’m not going to kill people anymore — that had to happen and then, this season, I think the arc of this season needed to happen to really show like I was different and I was remorseful.”

Now that Gilford is done with Criminal Minds, the actor said he is available to work with filmmaker Mike Flanagan again.

The pair previously collaborated on the Netflix horror mini-series, Midnight Mass, The Midnight Club and The Fall of the House of Usher.

“I wasn’t available for his last couple of projects and I know he’ll be in post [production] for a while on The Exorcist, but I hope to work with him again,” Gilford said.

“I love working with him. I feel so fortunate that I got to do three different projects with him and I learned so much from him and I’m just a huge fan of his.”