Because you like Mr. Peanutbutter in Bojack Horseman

An escaped convict on a mission, Sirius Black is brooding, brave, and reckless. See them in Harry Potter Series.

Kat Stratford is part of the "out" crowd and proud of it. See them in 10 Things I Hate About You.

Hell hath no fury like an evil fairy scorned. See them in Maleficent.

L is enigmatic, child-like, and one of the smartest people in the world. See them in Death Note.