Mr. Robot actor Christian Slater says that the show's writers are currently putting together the fourth season, and that he believes that it will also be the last. Created by Sam Esmail, the show debuted in 2015 and stars Rami Malek as Elliot, a brilliant hacker who becomes embroiled in an anarchist plot to disrupt the world through cyber-vigilantism.

Mr. Robot wrapped up its third season in December 2017, and was officially renewed for season 4 shortly before the finale aired. The show's fourth season is expected to begin filming later this year and premiere in 2019. Esmail has been consistent in saying that he envisioned the story with a specific endpoint, estimating that it will wrap up by the end of its fourth or fifth season, and now it seems that the end could be on its way pretty soon.

Speaking to Collider about his role in newly-released drama The Wife, Slater was asked generally about how things are going with Mr. Robot, and offered his own thoughts on how much longer the series will run:

"Yeah, season 4, and I believe that will be the last season. Sam [Esmail] always said it was going to be somewhere in that zone, and he didn’t want to go further than what he could creatively contribute to that storyline. So, I think that season 4 will be it. I think they’re in the writers’ room, as we speak, putting it all together, but I have no idea what it’s gonna be, or if I’m gonna be floating in and out of scenes. I have no idea, so we’ll see what happens."

Of course, Slater's words shouldn't be taken as gospel, since he admits that he has "no idea" where things will go for his character in season 4. In fact, the last we heard from the showrunner, five seasons was looking more likely. Speaking to THR about the season 3 finale last year, Esmail said:

"I've always said it's four or five seasons, and I've said that because I think it's somewhere in between. Whether that means the next two seasons are two short seasons, or it could technically still be two full ten-episode seasons, we're still kind of figuring that out. It's something the writers' room and I take very seriously. We never want to feel like we're treading water. Hopefully it fits into two more seasons, but we're trying to figure out that number."

It worth noting that Mr. Robot's ratings have dropped considerable since its much-hyped first season, with the season 3 finale attracting less than half a million viewers. The USA Network has enjoyed the prestige and awards garnered by the show, and continued to support it as the ratings dropped throughout seasons 2 and 3. However, at this point there's no guarantee that Mr. Robot will be renewed for a fifth season - especially if the current trend continues - and Esmail may try to find a way to wrap things up, rather than risk the story being left unfinished by way of cancelation.