Because you like Stewie Griffin in Family Guy
Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.
Leonidas is not the kind of king who merely gives orders; rather, he's out on the battlefield fighting alongside his men. See them in 300.
Once a loving family man, James Heller is now dark, damaged, and hell-bent on getting revenge. See them in Prototype Series.
Krusty The Clown somehow makes life sillier and more somber at the same time. See them in The Simpsons.
Optimus Prime is a shapeshifting sentient robot leading a team of robots to stop evil from taking over. See them in Transformers.
Django was once a slave. Now that he has a taste of freedom, he understandably wants a full meal. See them in Django Unchained.
Blade has all the cool vampire powers with none of the weaknesses. Definitely not a guy to pick a fight with. See them in Blade.
Due to his eagerness to hang with his kids and general goofiness, Phil Dunphy comes across as the fourth child of his family. See them in Modern Family.
Sookie Stackhouse is a waitress who can read minds and break hearts. See them in True Blood.
Tarzan is walking the line between human and animal. Good thing he has excellent balance. See them in Tarzan.