514 - A Free Scratcher and Feminine Wiles

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