Emily Head has admitted that The Inbetweeners Movie is almost certainly the show's finale.
The 22-year-old, who plays Carli D'Amato in the E4 sitcom, claimed that the upcoming big-screen adventure will likely conclude the series, despite reports of two future TV specials and of a second film.
"If anyone had told us four years ago that we'd be doing a movie version of The Inbetweeners, we'd have laughed in their face," she told The Mail On Sunday.
"The show's been so much fun to do. I'm really going to miss it now it's finished - well, we're guessing it's finished.
"Nothing's set in stone but the film kind of ties everything up neatly, and we can't all be stuck in the sixth form when we're getting into our mid-to-late 20s. But it's been four great years of my life... I'm already feeling bereft."
The Inbetweeners writer Damon Beesley said in June that the movie will serve as the "final piece of the jigsaw" for the show.
The Inbetweeners Movie will be released on August 19.