Because you like Nancy Drew in Nancy Drew
A monstrous pirate captain, Davy Jones is quite literally heartless. See them in Pirates of the Caribbean: the Curse of the Black Pearl.
Anna Karenina doesn't want to be a respectable woman any more. She thinks respect was invented to cover the empty place where love should be. See them in Anna Karenina.
Catwoman might be slightly unhinged, but you can't say this feline villainess isn't confident. See them in DC Extended Universe.
Velma Dinkley is all about getting results, not taking credit. She is the unsung hero of Mystery Inc. See them in Scooby-Doo.
No one has seen The Mandalorian without his helmet since he swore the creed. See them in The Mandalorian.
Audrey Horne may seem inquisitive and charming, but she can turn on a dime. See them in Twin Peaks.
Angela Martin is uptight and puritanical, outside of the affair she's having with a co-worker. See them in The Office.
Emma Woodhouse knows what's best for everyone else. Just don't try to tell her what to do. See them in Emma.
Mr. Fox will never truly be happy without a dead chicken between his chompers. See them in Fantastic Mr. Fox.
Luke Skywalker always wanted to leave home, but he didn't expect that it would be as part of a quest to rescue a princess and save the galaxy. See them in Star Wars Series.
Helena is a mentally unstable, childish, and completely merciless. And most of all, she's an unstoppable killer. See them in Orphan Black.