Young Sheldon - Sheldon's getting married, and his sister will be in attendance! See what Missy's future holds when Courtney Henggeler guest stars on The Big Bang Theory, tonight at 8/7c on
![The dress of the sister of Sheldon / Missy Cooper (Courtney Henggeler) in The Big Bang Theory S01E15 | Spotern The dress of the sister of Sheldon / Missy Cooper (Courtney Henggeler) in The Big Bang Theory S01E15 | Spotern](https://medias.spotern.com/wanted/share/35/35597-1532336922.png)
The dress of the sister of Sheldon / Missy Cooper (Courtney Henggeler) in The Big Bang Theory S01E15 | Spotern
![Big Bang Theory' Boss Talks 'Young Sheldon' Crossover Plans and Family Reunions at Sheldon & Amy's Wedding | Entertainment Tonight Big Bang Theory' Boss Talks 'Young Sheldon' Crossover Plans and Family Reunions at Sheldon & Amy's Wedding | Entertainment Tonight](https://www.etonline.com/sites/default/files/styles/970xh/public/images/2018-02/1280_big_bang_sheldon_amy.jpg?itok=gt-BZIo2)
Big Bang Theory' Boss Talks 'Young Sheldon' Crossover Plans and Family Reunions at Sheldon & Amy's Wedding | Entertainment Tonight
![Big Bang Theory: What happened to Missy Cooper? Why did she leave? | TV & Radio | Showbiz & TV | Express.co.uk Big Bang Theory: What happened to Missy Cooper? Why did she leave? | TV & Radio | Showbiz & TV | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/20/590x/secondary/Big-Bang-Theory-Missy-at-Sheldon-s-wedding-2163726.jpg?r=1573671968927)
Big Bang Theory: What happened to Missy Cooper? Why did she leave? | TV & Radio | Showbiz & TV | Express.co.uk
![Big Bang Theory' Boss Talks 'Young Sheldon' Crossover Plans and Family Reunions at Sheldon & Amy's Wedding | Entertainment Tonight Big Bang Theory' Boss Talks 'Young Sheldon' Crossover Plans and Family Reunions at Sheldon & Amy's Wedding | Entertainment Tonight](https://www.etonline.com/sites/default/files/styles/max_1280x720/public/images/2018-02/1280_big_bang_young_sheldon.jpg?h=c673cd1c&itok=cgDuC_zV)
Big Bang Theory' Boss Talks 'Young Sheldon' Crossover Plans and Family Reunions at Sheldon & Amy's Wedding | Entertainment Tonight
![Big Bang Theory plot hole: Fans spot major Missy Cooper baby error | TV & Radio | Showbiz & TV | Express.co.uk Big Bang Theory plot hole: Fans spot major Missy Cooper baby error | TV & Radio | Showbiz & TV | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/20/750x445/1261283.jpg)