If you're going to do a teen drama properly, you're going to need a smoldering hottie. If you're lucky, you've made this guy a protagonist. (What up, Ryan from The O.C.?) And if your main character is a nerd or a female, you'd better make them friends and/or lovers with a misunderstood bad boy.
The G.O.A.T. in this category is obviously Friday Night Lights' "Texas Forever" Tim Riggins (Taylor Kitsch), but if you prefer James Franco's Daniel Desario (Freaks and Geeks), we won't hold it against you. These days, this character is often also a vampire, but you have to believe that's a trend that will end sometime soon. Fingers crossed.