Because you like Maria von Trapp in The Sound of Music
Princess Fiona is a damsel who doesn't need saving, but she's cursed with an embarrassing secret. See them in Shrek.
Rupert Giles is a librarian on the outside, fearless evil-fighter on the inside. See them in Buffy the Vampire Slayer.
Disgust is a friend who makes sure you stay away from all things gross. See them in Inside Out.
White Witch's heart is as frozen as the land she rules. See them in The Chronicles of Narnia.
Driven by obsession and anxiety, Monk bravely overcomes, or at least battles, his fears to help the world. See them in Monk.
Andy Dwyer might not be completely literate, but he makes up for it in spirit. See them in Parks and Recreation.
Innately shy, Ginny Weasley is growing into a feisty, independent spirit. See them in Harry Potter Series.
Wendy Corduroy is the ultimate in cool in Gravity Falls. See them in Gravity Falls.
Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.
Anger is a cantankerous hothead whose job is to get others riled up. See them in Inside Out.
Others see him as the town nutcase, but Flint Lockwood knows his inventions will change the world someday. See them in Cloudy with a Chance of Meatballs.
Sookie St. James is a klutzy and perfectionist chef who's always there for her friends. See them in Gilmore Girls.