The current season of Shameless will be the end for not one but two major characters.

Shameless co-star Cameron Monaghan, who plays Ian on Showtime’s long-running comedy, will leave the show during this Sunday’s new episode. The actor made the announcement on Instagram Monday afternoon.

The news comes just a few weeks after Emmy Rossum announced that the current season of Shameless will be her last. Despite running for nine seasons, the series has managed to keep its entire core cast in tact for its entire run thus far.

Said Monaghan on Instagram:

I have been a series regular on this show for roughly ten years. I was the tender age of fifteen when we shot the pilot, and I came of age in so many ways, both legally and personally. I was very lucky to mature and grow with this show. Experiencing so many firsts, maturing as an actor, a professional, and a human. In the process gaining friends, family, and the best coworkers a very lucky actor could ask for, and for this I can be nothing but gracious.

All good things come to an end. An old cliche, but one that rings true with a sincerity and clarity especially in moments like these. Everything ends.

The next episode will be my last. I have known since last year, but I didn’t want to give it away too early as I wanted this season to be a surprise for the audience, allowing them to experience Ian’s unsure journey with his character. This role has been a joy to inhabit, a wild and special ride, and I’d like to thank #Shameless as well as you, the viewers, for being there with him.
Goodbye, Ian Clayton Gallagher. We’ll meet again?

Shameless airs Sundays on Showtime. Despite the major departures, the show is expected to continue for at least one more season.