Because you like Santana Lopez in Glee

Altair Ibn-La'Ahad is as much a philosopher and detective as he is a killer. He takes nothing at face value and continually searches for deeper truths. See them in Assassin's Creed Series.

A Silurian lizard woman, Madame Vastra has a penchant for puzzles and interspecies romance. See them in Doctor Who.

As the Rose Bride, Anthy Himemiya is a spectator in the fencing matches fought over her and her power "to revolutionize the world." See them in Revolutionary Girl Utena.

A courageous boy robot, Mega Man is dedicated to achieving everlasting peace. See them in Mega Man.

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.

While his twin tries to save lives, Millions Knives does the best to end them. See them in Trigun.

Jenko was top dog in high school. Now he's bottom of the pack in the police academy. See them in 21 Jump Street.

An infamous vampire, Alucard is a one-man killing machine with a philosophical side. See them in Hellsing.

An assassin with supernatural gifts, Corvo Attano is the last guy you should frame for murder. See them in Dishonored.

For the sake of science, Kurisu Makise will persevere no matter how deep into the dark secrets of the world she finds herself. See them in Steins;Gate.

John Yossarian is trapped in irony as he must be insane to leave the war but if he does try to leave, he'll be deemed sane and will be forced to stay, See them in Catch-22.

Aragorn is the one true king, a title he is too humble to accept. See them in The Lord of the Rings.