Because you like Marius in Les Miserables
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.
A Hollywood starlet with a vindictive streak, Madison Montgomery is one witch that you shouldn't cross. See them in American Horror Story.
You'll never get Alaska Young. And that's the whole point. See them in Looking for Alaska.
Big Boss is a disillusioned mercenary commander who wants to create a world for soldiers (and soldiers alone). See them in Metal Gear Series.
An underdog with nothing left to lose, Donnie Creed has everything to prove. See them in Creed.
A literal fallen star, Yvaine is temperamental, sarcastic, and a bit on edge. See them in Stardust.
Maya Lambert is an obsessive intelligence officer with tunnel vision leading toward Osama bin Laden. See them in Zero Dark Thirty.
Aragorn is the one true king, a title he is too humble to accept. See them in The Lord of the Rings.
Albus Dumbledore oversees the most unsafe school in recorded history, with Dementors and giant arachnids run amok. See them in Harry Potter Series.
Gollum is slimy and seething with hatred, the last person you would want to meet in a dark cave. See them in The Lord of the Rings.
If you cross him, Tommy Shelby is the last man you'll ever see. Not too hard on the eyes though. See them in Peaky Blinders.