Because you like Eric Foreman in House M.D.

Dory is more than a little forgetful, but she'll always remember to have your back. See them in Finding Nemo.

Some say to survive in Underland you need to be as mad as a hatter–which, luckily, he is. See them in Alice in Wonderland.

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

What Ron Weasley lacks in motivation and book smarts, he makes up for in loyalty and street smarts. See them in Harry Potter Series.

Harry Potter is the boy who lived! See them in Harry Potter Series.

Both intelligent and empathetic, Remus Lupin is worn down by the weight of a secret. See them in Harry Potter Series.

A bookish know-it-all with a bossy streak, Hermione Granger always stands up for what she believes in. See them in Harry Potter Series.