Because you like Sheldon J. Plankton in SpongeBob SquarePants

His name is Inigo Montoya and whoever killed his father should be prepared to die. See them in The Princess Bride.

Viking Astrid Hofferson has it all: brains, brawn, and some killer braids. See them in How to Train Your Dragon.

Wendy Darling loves storytelling and flying. See them in Peter Pan.

Carol Peletier's credo: your strength comes from who you are, not who you used to be. See them in The Walking Dead.

Sophie Sheridan is a proud and independent woman who hardly ever looks before she leaps. See them in Mamma Mia!.

A house elf, Dobby is loyal, compassionate, and yearning for freedom. See them in Harry Potter Series.

Drusilla's hobbies include dolls, music, and killing people. See them in Buffy the Vampire Slayer.

A ball of cheerful energy, Pinkie Pie is as sweet as her name suggests and lives to bring others joy with laughter and parties. See them in My Little Pony.

There's erratic, and then there's Senor Chang. See them in Community.

Trevor Phillips is an unpredictable maniac who tortures people for no reason. See them in Grand Theft Series.

Innately shy, Ginny Weasley is growing into a feisty, independent spirit. See them in Harry Potter Series.

Molly Weasley runs a household teeming with magic: gnomes run around the garden, dishes wash themselves, and noisy ghouls rule the attic. See them in Harry Potter Series.