Mayim Bialik and Melissa Rauch have reportedly finalized their contract deals to appear in seasons 11 and 12 of hit TV show The Big Bang Theory.

The comedy series was renewed for two additional seasons last month (Mar17), weeks after main castmembers Jim Parsons, Johnny Galecki, Kaley Cuoco, Simon Helberg, and Kunal Nayyar inked their new two-year contracts, and Bialik and Rauch have now joined them.

According to Deadline.com, the actresses' contracts took longer to negotiate because of the substantial raise they were seeking. Bialik and Rauch began guest-starring on the show in season three and booked regular roles the following season. Their most recent contract had them earning $175,000 to $200,000 per episode, but they were reportedly seeking a little under $1 million per episode like their other co-stars.

Bialik and Rauch's new contract is reportedly for $425,000 to $500,000 per episode.

In March (17), Bialik and Rauch's co-stars offered to take a pay cut of $100,000 each to free up $500,000 to give to Bialik and Rauch towards their salaries.