Rivals Pemberton and Campbell charm America on a publicity tour so Sheldon and Amy try to win over Nobel laureates Kip Thorne, George Smoot and Frances Arnold. Halley's fear of the dark causes opportunity and conflict at the Wolowitz home.
Episode rating
Cast of episode
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8
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- Amy Farrah Fowler
- Sheldon Cooper
- Howard Wolowitz
- Leonard Hofstadter
- Penny
- Bernadette Rostenkowski
- Stuart Bloom
- Raj Koothrappali
- Ellen DeGeneres
- President Siebert
- Dr. Kevin Campbell
- Halley Wolowitz
- Dr. Greg Pemberton
- Dr. George Smoot
- Frances H. Arnold
- Kip Thorne
- Reception Guest