Because you like Dorothy Gale in The Wizard of Oz
Bedside manner is for chumps, not the brilliant Dr. Gregory House. See them in House M.D..
Char is always thinking two or three steps ahead of the enemy. See them in Mobile Suit Gundam Series.
Hawkeye Pierce is a Devil-may-care Army doc who'd have the Devil laughing and drinking in five minutes flat. See them in M*A*S*H.
L is enigmatic, child-like, and one of the smartest people in the world. See them in Death Note.
Joel is a hardened, jaded survivor who keeps finding things to fight for. See them in The Last of Us.
Artemis Fowl understands the way of the world. If he wins, he's a prodigy. If he loses, then he's crazy. That is how history is written. See them in Artemis Fowl.
Tiffany Doggett is usually a nice, good Christian. Just don't get her riled up! See them in Orange Is The New Black.
Altair Ibn-La'Ahad is as much a philosopher and detective as he is a killer. He takes nothing at face value and continually searches for deeper truths. See them in Assassin's Creed Series.
Sterling Archer is a fun-loving, car-driving spy extraordinaire. But one can tell his mother didn't hug him as a child. See them in Archer.
As an undercover cop, Schmidt is getting to relive high school as a cool kid. See them in 21 Jump Street.
Francis Freeman may be impervious to pain, but he sure knows how to inflict it. See them in Deadpool.
Mikasa Ackerman is a near-perfect soldier who won't break her stone-faced expression whether she's killing foes or protecting loved ones. See them in Attack on Titan.