Because you like Kim Possible in Kim Possible
A believer in the pursuit of justice, Garrus Vakarian hates it when bad guys slip through the cracks of the bureaucratic justice system. See them in Mass Effect.
A gruff and hardened professional, Marcus Fenix keeps his emotions buried deep. See them in Gears of War.
After alien Haruko rides in on her Vespa, giant robots spouting from Naota Nandaba's forehead soon become the least of his worries. See them in FLCL.
It's hard to tell if Dean Winchester cares more about saving the world or his 1967 Chevy Impala. See them in Supernatural.
With a unique ability to empathize with killers, Will Graham helps society but his sanity pays the price. See them in Hannibal.
Quentin has his whole life mapped out. It might sound boring, but he likes boring. See them in Paper Towns.
Stoic, cynical, and brilliant, Solid Snake was genetically engineered to be the perfect soldier. See them in Metal Gear Series.
Not only could Hellboy avenge your death, he'd also have a sense of humor about it and not let it ruin the rest of his night. See them in Hellboy.
Whether he's performing "illusions" or running the family business, one thing is certain: Gob Bluth will screw it up. See them in Arrested Development.
Charismatic, sociopathic, and dramatic, Charlie Bronson wants nothing more than to be famous. See them in Bronson.
Cynicism is his armor and words are his weapons, but what Tyrion Lannister would really like is some nice wine. See them in Game of Thrones.