YOUNG SHELDON Adds Annie Potts In Major Role

BEVERLY HILLS, CA - AUGUST 02: Actress Annie Potts arrives for the 2012 TCA Summer Press Tour at The Beverly Hilton Hotel on August 2, 2012 in Beverly Hills, California. (Photo by Mark Sullivan/WireImage)

Annie Potts is set to join The Big Bang Theory Prequel in a major role.

Potts will play Meemaw, Sheldon’s grandmother described as foul mouthed and hard-drinking but also very supportive of her grandson. She was mentioned for several seasons on the hit show before finally making an appearance played by actress June Squibb.

CBS is airing a special preview of Young Sheldon on Monday, Sept. 25 at 8:30/7:30c, prior to its official premiere on Thursday, Nov. 2 at 8:30 pm.