The Big Bang Theory ran for 12 seasons and we all fell in love with the cast of characters.
There was geeky scientists Sheldon Cooper, Leonard Hofstadter, Howard Wolowitz and Rajesh Koothrappali whose loves were turned upside down when actress Penny moved in across the hall.
It didn't take long before others joined the gang. Howard would meet Bernadette, whilst Sheldon would eventually fall in love with Amy.
The cast of characters were iconic, but how much do you know about them?
Do you know all there is to know about the different characters in The Big Bang Theory? This quiz features 12 statements all about the amazing cast of characters and all you need to do is work out who it's about.
Can you remember who it was appeared in People Magazine? Which one of The Big Bang Theory characters danced with a mop at their high school reunion?
Only the biggest fans of the 279 episodes of The Big Bang Theory will be able to answer identify who did each of these 12 things. Let's see if you can get 100% on this ultimate The Big Bang Theory quiz!
Don't forget, all the answers can be found at the end of the quiz. Good luck!