Because you like Holly Golightly in Breakfast at Tiffany's
Gomez Addams fills his days with ghoulish and ghastly forms of recreation, enjoying life and all its pleasures to the fullest. See them in The Addams Family.
If this slick ad man doesn't like the conversation, he changes it—while drinking and smoking. See them in Mad Men.
Bella Swan thinks of it as her job to help her parents and protect her friends, even though it often ends up the other way around. See them in Twilight.
Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.
A contemptuous aristocrat, Violet Crawley is unafraid to exert her authority and voice her opinions, no matter how harsh they are. See them in Downton Abbey.
Charlie is a Type A theater director dealing with something out of his control: a painful divorce. See them in Marriage Story.
Riggan Thomson is a washed-up movie star running from his inner demons. Alas those inner demons look just like the superhero he used to play. See them in Birdman.
Stranded on Mars, Mark Watney is armed with quick wits, an electronic diary, disco music, and an undying resolve to make it back. See them in The Martian.
Anya Jenkins has a real harsh bark to go with her demonic bite. See them in Buffy the Vampire Slayer.
Ash Williams is a houseware clerk at S-Mart and the Chosen One. See them in The Evil Dead.
Being beautiful and rich doesn't guarantee happiness for Cheryl Blossom. See them in Riverdale.