Because you like Lt. Commander Data in Star Trek: The Next Generation
All Catelyn Stark wants is to keep her family safe, but life in Westeros makes it nearly impossible. See them in Game of Thrones.
Klaus Baudelaire's photographic memory saves the lives of his siblings many times over. See them in Lemony Snicket's A Series of Unfortunate Events.
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.
Bobby Singer is a redneck ghost hunter, but all he wants to do is retire to the junk yards of South Dakota. See them in Supernatural.
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.
A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.
If Eleanor Shellstrop's true identity is revealed, she'll be sent to The Bad Place. See them in The Good Place.
Boomerang is equally skilled at tossing boomerangs and tossing back beers. See them in DC Extended Universe.
Jack Bauer is a terrorist fighter who is scared of nothing and no one. The clock is ticking! See them in 24.
They say prison changes you, and Piper Chapman is figuring that out the hard way. See them in Orange Is The New Black.
Krusty The Clown somehow makes life sillier and more somber at the same time. See them in The Simpsons.