Because you like Ben Stone in Knocked Up
Christian is a romantic who for some reason won't stop singing everything he feels. See them in Moulin Rouge.
Meg March might yearn for a life of ballgowns and diamond necklaces, but the boy she falls for doesn't have a penny to his name. See them in Little Women.
Tiana lives by a simple motto: "Fairy tales can come true. But you gotta make them happen, it all depends on you." See them in The Princess and the Frog.
Cisco Ramon is a proud, enthusiastic member of a superhero support team. See them in DC Extended Universe.
Strong-willed Norah Silverberg isn't willing to be the goody bag at anyone's pity party. See them in Nick and Norah's Infinite Playlist.
It's a mad, mad world, but Alice has a surprisingly level head as goes her own way down the rabbit hole. See them in Alice in Wonderland.
A meticulous forensic scientist, Edward Nygma is insanely good at his job. Emphasis on the "insane" part. See them in Gotham.
Driven by obsession and anxiety, Monk bravely overcomes, or at least battles, his fears to help the world. See them in Monk.
Years of being the less desirable Vargas sibling have given Romano quite an inferiority complex, as well as the temper to match. See them in Axis Powers Hetalia.