Howard meets the half-brother he never knew he had. Penny is invited to appear on Wil Wheaton's podcast.
The Big Bang Theory
The Fortification Implementation
season 8 episode 20
episode aired on april 2015
Episode rating
Cast of episode
67
14
11
5
1
1
- Sheldon Cooper
- Penny
- Amy Farrah Fowler
- Howard Wolowitz
- Raj Koothrappali
- Leonard Hofstadter
- Bernadette Rostenkowski
- Wil Wheaton
- Kevin Smith
- Josh Wolowitz
- Caller