Because you like James Gordon in DC Extended Universe
T'Challa is a regal superhero with the weight of the world (and particularly his nation) on his shoulders. See them in Marvel Cinematic Universe.
Olive Hoover is an irrepressible child beauty queen (or would-be queen) who doesn't play by your rules. See them in Little Miss Sunshine.
A suave manipulator, Sebastian Valmont is valiantly fighting off a developing conscience. See them in Cruel Intentions.
Leone Montana is a fearless hitman with a surprisingly sensitive side. See them in Leon: The Professional.
Petyr Baelish's main assets? A sharp mind, deep pockets, and no scruples. See them in Game of Thrones.
R2-D2 has been in the galaxy saving business for decades. Not bad for somebody whose vocabulary is limited to "beep-boop." See them in Star Wars Series.
Samantha Jones is a try-sexual who'll try anything once. See them in Sex and the City.
Jasmine dreams of something more than palace life, and she's not afraid to go get it. See them in Aladdin.
Arwen has to choose between a life of loneliness or love and inevitible death, both rather unfortunate options. See them in The Lord of the Rings.
Jesse Aarons' frustration can only find outlet in another world. See them in Bridge to Terabithia.
Clarice Starling is patiently working with one serial killer to stop another. See them in The Silence of the Lambs.
Frodo might have carried the ring, but Samwise Gamgee carried the ring bearer. See them in The Lord of the Rings.