Because you like Sylvia in The Truman Show
Patrick Verona is a bad boy who's after a tough girl. See them in 10 Things I Hate About You.
Reckless, vulgar, loud-mouthed: that's what makes Amethyst so awesome. See them in Steven Universe.
A singing nanny, Mary Poppins is practically perfect in every way. See them in Mary Poppins.
Kumar Patel is always high, always hungry for sliders. See them in Harold & Kumar Go To White Castle.
Although she's the queen of killer comebacks and one-liners, Janis Ian is honest about her feelings and cares deeply about her friends. See them in Mean Girls.
Most kids hope for a car for their 16th birthday, but Mia Thermopolis' present is a country to rule. See them in The Princess Diaries.
Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.
Violet Parr is an angsty teen would love to become even more invisible than her superpowers allow. See them in The Incredibles.
It's easy to see why Poe Dameron would side with the rebellion: he's bad at taking orders, likes to show off, and is committed to the cause. See them in Star Wars Series.