![The Big Bang Theory](https://image.tmdb.org/t/p/w300/ooBGRQBdbGzBxAVfExiO8r7kloA.jpg)
The Big Bang Theory - Season 12 Episode 24 Unraveling the Mystery: A Big Bang Farewell
Johnny Galecki and Kaley Cuoco will lead fans on a trip down memory lane, sharing some of the best-kept backstage secrets and personal memories from the past 12 years.
- Genre: Comedy
- Studio: CBS
- Keyword: geek, nerd, friends, scientist, sitcom
- Cast: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch