The Big Bang Theory - S9E17 - The Celebration Experimentation
- Sitcom
- TV-PG
- 18 min
- Feb 25, 2016
- HD
For the first time in nine years, the gang celebrates Sheldon's birthday -- surprising him with a special guest.
Director:
Mark Cendrowski
Cast:
Johnny Galecki
Jim Parsons
Kaley Cuoco
Simon Helberg
Kunal Nayyar
Mayim Bialik
Melissa Rauch
Kevin Sussman
Christine Baranski
John Bowie
Sara Gilbert
Wil Wheaton
Adam West