Because you like Tiffany Maxwell in Silver Linings Playbook
Although Thomas Sharpe is an English baronet, he doesn't have a Shilling to his name. He's in America to sell his invention and marry rich. See them in Crimson Peak.
Small in stature, Clara Oswald has a big appetite for adventure. See them in Doctor Who.
Bodhi Rook is a defected pilot for the Galactic Empire dead set on destroying the Death Star. See them in Rogue One.
Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.
A courageous boy robot, Mega Man is dedicated to achieving everlasting peace. See them in Mega Man.
Peter Pevensie shows as much courage as a child king as he did under The Blitz of London. See them in The Chronicles of Narnia.
Often on the verge of a nervous breakdown, Annie Edison nevertheless manages to be the brain of the Greendale study group. See them in Community.
Maria Rambeau is a tough-as-nails Air Force pilot who is also a loving single mom. See them in Marvel Cinematic Universe.
Driven yet empathetic, Emily Prentiss brings humanity to the pursuit of inhuman killers. See them in Criminal Minds.
R2-D2 has been in the galaxy saving business for decades. Not bad for somebody whose vocabulary is limited to "beep-boop." See them in Star Wars Series.
A house elf, Dobby is loyal, compassionate, and yearning for freedom. See them in Harry Potter Series.