The Big Bang Theory ster Johnny Galecki teases possible final season 

 star Johnny Galecki teases possible final season

‘s final season could already be in sight. Following the show’s panel for the Television Critics Association, star and executive producer Johnny Galecki addressed reporters in attendance about when the long-running CBS sitcom might come to an end.

“The only manner in which the cast has discussed wrapping [the show] has been that we’re all going to be very sad when that day comes,” Galecki said (via E! News). “But I think at this point everyone’s very comfortable with 12 seasons being a good time to go home and see our families.”

 — which also stars Jim Parsons, Kaley Cuoco, Simon Helberg, Mayim Bialik, and Kunal Nayyarwill — a two-season renewal last March with the current 11th season premiering this past September.

revival, and he told reporters that was by virtue of his commitment to

is my home and my family,” he said, according to TV Line. “But I probably wouldn’t have

. So there were the politics to be considerate about, but everyone was very supportive.”

is greenlit for more episodes, however, he said, “I would love to do more than one [episode].”

Meanwhile, Walton Goggins and Beth Behrs were revealed to have guest-starring roles for the Jan. 18th episode of 

has made a huge impact on our schedule in the short time it’s been on the air,” CBS President Kelly Kahl said in a statement. “While the show’s DNA is clearly rooted in

has staked out its own place in the TV universe with a unique creative tone, brilliant writing and a gifted multi-generational cast. We can’t wait to see Chuck, Steve, Jim, and Todd’s vision for how the Cooper family deals with Sheldon growing a year older… and smarter.”