The cast of "The Big Bang Theory"
The cast of "The Big Bang Theory" resumes production for 8th season. Reuters

The principal cast of hit sitcom The Big Bang Theory has tripled their pay-packets after having negotiated reported salaries of $1million per episode.

The CBS comedy's principal characters Jim Parsons, Johnny Galecki and Kaley Cuoco, who play Sheldon, Leonard and Penny, have signed new three-year deals with Warner Bros TV to star in The Big Bang Theory, after stalling production last week.

After months of negotiations, the trio finally banged out new, three-year deals that will triple their current $350,000 an episode salary. The CBS stars will be raking in the huge hike for 72 episodes in the upcoming seasons 8-10.

Fellow Big Bang stars Simon Helberg (Howard) and Kunal Nayyar (Raj) are still negotiating their contracts but are expected to sign new deals shortly.

According to a report in Deadline, apart from the big jump in salary, Parsons, Galecki and Cuoco will also receive a bigger cut of the show's lucrative syndication earnings on TBS.

If Helberg and Nayyar close on time for the Wednesday table read, production on Season 8 will be only one week behind schedule - a delay that the actors and Warner Bros TV are hopeful can be made up later in the season so that the order remains 24 episodes and not trimmed to 23.

Also, last fall, co-stars Melissa Rauch and Mayim Bialik signed on for Season 8 with around $60,000 per episode, a raise from their previous $20,000-$30,000 range per episode pay, reported Deadline.

While some fans were nervous about The Big Bang Theory's future, creator Chuck Lorre told E! News everything will work out.

"It will be fine," Lorre said earlier this month.

"Warner Bros. has done this before. Everybody should be very successful and happy and rich. They earned it. It's a great cast. Great cast. It's their time," he added.

The Big Bang Theory Season 8 is set to premiere on September 22 on CBS.