As Two and a Half Men comes to an end Thursday night, the big question is whether Charlie Sheen will make an appearance.

Stars Ashton Kutcher and Jon Cryer aren’t saying, but it does sound like it. Asked by Entertainment Tonight if Charlie would “pop up” in the one-hour series finale, Ashton played coy, saying, “It’s funny that you said ‘pop up.’ I find that interesting.”

After a bitter feud with show creator Chuck Lorre, Sheen’s character, Charlie Harper, was killed off in the Season 9 premiere when he was hit by a train. But with the final episode titled “Of Course He’s Dead – Part One and Part Two,” many fans are speculating that Charlie — who’s been vocal about returning to the show — will pop out of the grave.

Still, there will be plenty of other guest stars showing up on the episode, which Thursday at 9 p.m. on CBS.