Sara Gilbert and Johnny Galecki have a long history together. They first played love interests on the long running “Roseanne” and recently, Gilbert made a few guest apperances on Galecki’s new show “The Big Bang Theory”.

Well, apparently those guest spots were well received, because now Sara has been added to the cast of “Big Bang” as a series regular starting next season. When the series returns on Sept. 22nd, you can expect to see Gilbert and Galecki on the show…but not necessarily together.

Rumor has it that Galecki’s character “Leonard” may still be a bachelor when the show makes its return.