Because you like Katana in DC Extended Universe
Light Yagami has a plan to make a better world, and morals won't stop him. See them in Death Note.
Dr. Gordon Freeman is a brilliant physicist is a quiet hero. And given all the violent aliens, he better be. See them in Half-Life.
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.
A literal fallen star, Yvaine is temperamental, sarcastic, and a bit on edge. See them in Stardust.
When it comes to flattery, manipulation, and politics, Oswald Cobblepot can play with the best of them. See them in Gotham.
An agile and powerful swordswoman, Saber is a dignified warrior down to her bones. See them in Fate/Stay Night.
The son of Death has an obsession with perfection and symmetry. See them in Soul Eater.
Did he ever tell you the definition of insanity? Just wait, and this psychopath will do just that. See them in Far Cry 3.
Offred wisely keeps her head down even as she hopes for more. Unfortunately, hope is dangerous in Gilead. See them in The Handmaid's Tale.
Success for Eggsy Unwin means joining Kingsman, and failure could mean death. See them in Kingsman: The Secret Service.