514 - A Free Scratcher and Feminine Wiles
Aired Thursday, February 24, 2022

Sheldon butts heads with Dr. Lee (Ming-Na Wen), a new scientist in the lab. Also, Mary is given a lotto ticket.
- Guest Stars:
- Wallace Shawn as Dr. John Sturgis
- Ed Begley, Jr. as Dr. Linkletter
- Wendie Malick as President Hagemeyer
- Rex Linn as Principal Petersen
- Ming-Na Wen as Dr. Lee
- Derrick L. McMillon as Hal
- Writers (Story):
- Steve Holland
- Eric Kaplan
- Nadiya Chettiar
- Writers (Teleplay):
- Steven Molaro
- Jeremy Howe
- Connor Kilpatrick
- Director:
- Michael Judd