Because you like Zack Morris in Saved by the Bell
Kenzo Tenma would have never guessed that ten-year-old he saved would later become a deadly serial killer intent on "thanking" him. See them in Monster (TV Show).
Tony Stonem is the golden boy of Bristol. Problem is, he knows it. See them in Skins.
A bloodsucker, Carlisle Cullen is actually more likely to give you a blood infusion. See them in Twilight.
Eponine is a scrappy street urchin with a bad case of unrequited love. See them in Les Miserables.
This is not a democracy. According to Torrance Shipman, it's a "cheerocracy." See them in Bring It On.
Raised to happily follow the rules, Cassia might actually be more rebellious than she thinks she is. See them in Matched .
A conflicted small-town preacher, Jesse Custer leaves an unexpectedly bloody path in his wake. See them in Preacher.
Jason Bourne is suffering amnesia, but considering what he's done as a CIA assassin, maybe that's for the best. See them in The Bourne Identity.
Dr. Gordon Freeman is a brilliant physicist is a quiet hero. And given all the violent aliens, he better be. See them in Half-Life.
Fox McCloud leads a team of pilots through the Lylat System in search of the evil genius Andross, the villain that killed his father. See them in Star Fox.
The Ice King is lonely and looking for a princess to sweep him off his feet. See them in Adventure Time.