Minor characters two

1. Laurie Metcalf is Mary Cooper, the mother of Sheldon, it is a devout Christian from Texas, she has two children in addition to Sheldon, including the twin sister of the latter, called Missy Cooper. She is not intellectual but very circumspect in her turn and is the only person who has been able to control Sheldon.

2. Kevin Sussman is Stuart who is responsible for the comic book store which go once a week Sheldon, Leonard, Wolowitz and Raj. It's kind of nerd, fan of comic strips and a very good artist. Because of the act of drawing so well it served to invite Penny out for the first time (she had gone to the comic shop and he gave her his portrait in exchange for her phone number). Advised by Leonard (who was dying of jealousy and allegedly tried to advise him badly), Stuart takes her to dinner and acts very slowly. But the tactic works and they ended in the car kissing. At the height point Stuart says, "¡¡¡Ohhh ... Penny...!!!"and she replied" ¡¡¡Oh ...... Leonard....!!!. The relationship ended at this point. But when the chapters pass, it is clear that Stuart is still in love with Penny.

3. Melissa Rauch is Bernadette, Penny's coworker at The Cheesecake Factory, was studying microbiology and Howard's girlfriend, but in the episode "The Plimpton Stimulation" he confesses that the relationship ended.

4. Courtney Henggeler is Missy Cooper, Sheldon's twin sister. She lives in Texas near her mother and works as a waitress in Fuddrackers.