If there were any extra characters in the show, there are some people I'd like to add.
Here's who they are:
Another Cooper brother who is also a child prodigy like Sheldon. He should be called Daniel.
He is 3 years younger than Sheldon and Missy
He is willing to be social and try new things
He idolizes Georgie and Missy and also his parents
He had a genuine crush on Paige ... so I've been wondering if Paige could've been his age since Sheldon is nothing but a piece of filth towards/about Paige
If he was to end up with anyone, it should be Emily Sweeney (and in this world, she and Raj never get together and also Emily would appear at the very beginning of the show where she is Penny's best friend and they were in school together and friends since childhood)
He wears glasses
A stepmother, stepsiblings and half-siblings for Leonard via his father