Leonard's book raises questions, and Amy guest stars on the new Professor Proton show.
The Big Bang Theory
The Novelization Correlation
season 11 episode 15
episode aired on february 2018
Episode rating
Cast of episode
51
34
9
4
2
1
- Sheldon Cooper
- Leonard Hofstadter
- Penny
- Amy Farrah Fowler
- Howard Wolowitz
- Bernadette Rostenkowski
- Raj Koothrappali
- Stuart Bloom
- Dr. Beverly Hofstadter
- Wil Wheaton
- Dead Detective