Series episode
Cast:
| Johnny Galecki | ... | Leonard Hofstadter |
| Jim Parsons | ... | Sheldon Cooper |
| Kaley Cuoco | ... | Penny |
| Simon Helberg | ... | Howard Wolowitz |
| Kunal Nayyar | ... | Raj Koothrappali |
| Eliza Dushku | ... | FBI Special Agent Angela Page |
| Neil deGrasse Tyson | ... | Himself |
| Mayim Bialik | ... | Amy Farrah Fowler |
| Michael Shawn McCracken | ... | Gorn |
Crew:
| Mark Cendrowski | ... | Direction |
| Steven Molaro Bill Prady Steve Holland | ... | Script |