Because you like Bernadette Rostenkowski in The Big Bang Theory

Talos is a mysterious military commander skilled in the art of deception. See them in Marvel Cinematic Universe.

Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.

Mako is carrying the world on his shoulders. See them in The Legend of Korra.

Elaine Benes is a tough New Yorker who can hang with the guys, and date the ones who are "sponge-worthy." See them in Seinfeld.

Just because he rules Hades, doesn't mean he can't be fun! See them in Hercules.

Ishmael is a quiet observer on a larger-than-life quest. See them in Moby Dick.

Krusty The Clown somehow makes life sillier and more somber at the same time. See them in The Simpsons.

A hurricane of a human being, Marla Singer is destructive and unforgettable. See them in Fight Club.

On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.

Ianto Jones' withdrawn nature conceals his emotional pain. See them in Torchwood.

If it were up to her, Merida would spend her days practicing archery and swordfighting, riding her horse, and exploring the Highlands. See them in Brave.

After having his mind altered after a bad breakup, Joel Barish is not convinced that ignorance is bliss. See them in Eternal Sunshine of the Spotless Mind.