Because you like Peter Brady in The Brady Bunch
Duck, girl, and legend: Ahiru's identities confuse even herself at times, and she often wonders which of them is truly her. See them in Princess Tutu.
John Locke is an eerily calm, confident believer in the magic of the island that gave him his legs back. See them in Lost.
Philip J. Fry accidentally cryogenically froze himself for a millennium. See them in Futurama.
Andy Dwyer might not be completely literate, but he makes up for it in spirit. See them in Parks and Recreation.
Milo Thatch is an enthusiastic researcher without cynicism. See them in Atlantis: The Lost Empire.
When it comes to Haruko Haruhara, there's more to the pink-haired biker than meets the eye. See them in FLCL.
Hotheaded and arrogant, Kaneda is nevertheless fiercely protective of the biker gang he leads. See them in Akira.
Susan Pevensie is sensible, practical, and fiercely protective of those she loves. See them in The Chronicles of Narnia.
More than any of her friends, Fluttershy is willing to see the best in everyone, a trait that has won over many enemies. See them in My Little Pony.
Roger is a pansexual alcoholic non-human who will happily lie, cheat and steal to get what he wants. See them in American Dad!.
Cady Heron is the new girl in town who's also new to the world of high school, period. See them in Mean Girls.