Melissa "Missy" Cooper is Sheldon's fraternal younger twin sister, who is ironically the direct opposite of her brother in many ways (besides being female, she is not above physical confrontation, is very charming and amicable, as well as possessing a very cheeky sense of humor). She is the sister-in-law of Amy.
Teen Titans Go! may be bad but at least there are so many good jokes, awesome animation and great movies to begin with. Here are the many, many things that are WAY worse than Teen Titans Go!
