Lajoie was born in Longueuil, Quebec, Canada, and raised in the South Shore of Montreal. His father is Quebecois quÃ©bÃ©cois and his mother Is-English, canadian and he is the third of nine. Children he graduated From Dawson 'college s professional theatre program in. 2002
Missy Cooper is Sheldon's fraternal twin sister, who is ironically the direct opposite of her brother in many ways (besides being a female, she is not above physical confrontation, is very charming and amicable, as well as possessing a very cheeky sense of humor).
Despite Missy and Sheldon being twins they are very different both intellectually and socially. Courtney has only appeared in one episode of The Big Bang Theory - The Porkchop Indeterminacy. Missy Cooper (Courtney Henggeler): Missy is Sheldon's twin sister who is intellectually and socially very much unlike him. Confident, tall and attractive, she immediately catches the attention of Leonard, Howard, and Raj. Sheldon realizes that within Missy's eggs lies the potential for another superior mutation like him.