Because you like Madame Vastra in Doctor Who
The ever-cheerful Tonks can change her appearance at will, but she can't seem to get rid of her clumsiness. See them in Harry Potter Series.
Don't tell anyone Kate Austen was under arrest when the plane crashed. See them in Lost.
He may forget his homework, lose his toad, and fall off brooms, but Neville Longbottom can also single-handedly destroy villains. See them in Harry Potter Series.
When the safety of Hyrule is at stake, Princess Zelda does not hesitate to sacrifice herself for the good of the land. See them in The Legend of Zelda.
If it means fulfilling her ambitions, Satsuki Kiryuin will show neither shame nor hesitation. See them in Kill la Kill.
Celie Johnson says she's poor, black, and may even be ugly. But dear God she's here. See them in The Color Purple.
Sylar's victims are found all over the country, many with their brains removed. See them in Heroes.
Introverted Kira Yukimura is sweet, bubbly, and eager to make friends. See them in Teen Wolf.
Yes, she's an "older" woman, but that just makes Mrs. Robinson sexier and more seductive. See them in The Graduate.
Sokka is the group's self proclaimed comedian, occasionally he'll even make people laugh! See them in Avatar: The Last Airbender.
Brandon Teena is an adventurous young man with the courage to be himself. See them in Boys Don't Cry.