Currently available on 3 streaming services.

Streaming, rent, or buy The Big Bang Theory – Season 9:

Currently you are able to watch "The Big Bang Theory - Season 9" streaming on Netflix, Amazon Prime Video, Neon TV.

Cast

Johnny Galecki
Leonard Hofstadter
Jim Parsons
Sheldon Cooper
Kaley Cuoco
Penny
Simon Helberg
Howard Wolowitz
Kunal Nayyar
Rajesh Koothrappali
Melissa Rauch
Bernadette Rostenkowski
Mayim Bialik
Amy Farrah Fowler