Because you like Nymphadora Tonks in Harry Potter Series
Count Olaf is a traveling actor, except he can't act and his homicidal tendencies make finding work pretty difficult. See them in Lemony Snicket's A Series of Unfortunate Events.
Howard Wolowitz is an engineer whose serious mommy issues somehow haven't dimmed his confidence. See them in The Big Bang Theory.
A singing nanny, Mary Poppins is practically perfect in every way. See them in Mary Poppins.
Edmund Pevensie isn't a bad person, but he did sell his siblings out for a tin of Turkish Delight. See them in The Chronicles of Narnia.
For Wreck It Ralph, it's not easy being the bad guy. Especially when you've been designed to destroy but really desire love. See them in Wreck-It Ralph.
Kristoff may seem standoffish, but this ice harvester has a warm heart. See them in Frozen.
Freddie Freeman is a superhero aficionado with a dark sense of humor. See them in Shazam.
Frodo might have carried the ring, but Samwise Gamgee carried the ring bearer. See them in The Lord of the Rings.
There's more to this sweet, caring landlady than meets the eye. See them in Sherlock.
A cursed pirate captain, Barbossa is greedy, vengeful, and surprisingly cheeky. See them in Pirates of the Caribbean: the Curse of the Black Pearl.
Greg Heffley will be famous someday, but now he's stuck in class with morons. See them in Diary of a Wimpy Kid.
Stella Grant is an organized, orderly optimist living with a dangerous disease. See them in Five Feet Apart.