Because you like Khan Noonien Singh in Star Trek Into Darkness
James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.
A formerly righteous wizard, Saruman has been corrupted by the forces of evil. See them in The Lord of the Rings.
Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.
Part archaeologist, part philosopher, part politician, Jean-Luc Picard is an unashamed intellectual who runs a tight ship. See them in Star Trek: The Next Generation.
There's more to this sweet, caring landlady than meets the eye. See them in Sherlock.
A mercurial mathematician, Ian Malcolm has a passion for Chaos Theory. See them in Jurassic Park.
Leonard "Bones" McCoy is passionate, moral, and ready to stitch you back together. See them in Star Trek.
A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.
With her mastery of martial arts and her prodigious building skills, Wyldstyle projects an air of invincibility. But she's not bulletproof. See them in The Lego Movie.
Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.
Baloo is a fun-lovin' bear who just needs the bare necessities of life See them in The Jungle Book.
