The Big Bang Theory" Is Officially 15 Years Old — Here Are 12 Side-By-Sides Of The Cast Then Vs. Now
![The Big Bang Theory' Season 12, Episode 22, Recap: Leonard and Beverly Just Broke My Heart | Glamour The Big Bang Theory' Season 12, Episode 22, Recap: Leonard and Beverly Just Broke My Heart | Glamour](https://media.glamour.com/photos/5cd20a4a2e1370e5ad00648b/4:3/w_2768,h_2076,c_limit/114925_0265b.jpg)
The Big Bang Theory' Season 12, Episode 22, Recap: Leonard and Beverly Just Broke My Heart | Glamour
![The Big Bang Theory' Season 12, Episode 21, Recap: Amy and Sheldon Are One Step Closer to the Nobel | Glamour The Big Bang Theory' Season 12, Episode 21, Recap: Amy and Sheldon Are One Step Closer to the Nobel | Glamour](https://media.glamour.com/photos/5cc795c88a76a85f9ccee911/16:9/w_2991,h_1682,c_limit/114919_WB_0980b.jpg)
The Big Bang Theory' Season 12, Episode 21, Recap: Amy and Sheldon Are One Step Closer to the Nobel | Glamour
![Amazon.com: The Big Bang Theory: The Twelfth and Final Season [DVD] : Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Mayim Bialik, Melissa Rauch, Chuck Lorre, Steven Molaro, Bill Prady, Amazon.com: The Big Bang Theory: The Twelfth and Final Season [DVD] : Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Mayim Bialik, Melissa Rauch, Chuck Lorre, Steven Molaro, Bill Prady,](https://m.media-amazon.com/images/I/71VZ5reqIyL._AC_UF350,350_QL50_.jpg)