Because you like Professor Hershel Layton in Professor Layton
Krusty The Clown somehow makes life sillier and more somber at the same time. See them in The Simpsons.
Born and raised in the darkness, Bane is determined to have the city totally under his control so that he can demolish it. See them in DC Extended Universe.
A childlike space cadet, Brittany Pierce has a surprisingly open-minded spirit. See them in Glee.
Experiment 626 was designed for one thing: to destroy everything he touches. See them in Lilo & Stich.
Jack's big imagination is never limited by his incredibly cramped surroundings. See them in Room.
Albus Dumbledore oversees the most unsafe school in recorded history, with Dementors and giant arachnids run amok. See them in Harry Potter Series.
Melinda May is a woman of few words and many talents. Most of them martial. See them in Marvel Cinematic Universe.
R2-D2 has been in the galaxy saving business for decades. Not bad for somebody whose vocabulary is limited to "beep-boop." See them in Star Wars Series.
The self-described "ghost with the most" knows the ins-and-outs of specter life like no other. Just ask him. See them in Beetlejuice.
A scary monster on the outside, James P. Sullivan is really a softie on the inside. See them in Monsters, Inc..
Khan Noonien Singh is super strong, super smart, and out for revenge. He always seems to be two steps ahead of his enemies. See them in Star Trek Into Darkness.