Because you like Inigo Montoya in The Princess Bride
Therese Belivet spent her life letting other people guide her along, and she wants to take control now. See them in Carol.
Though seemingly caring and calm, this motel owner has a mysterious streak of intensity. See them in Psycho.
Shana is a red-haired warrior with a black-and-white worldview. See them in Shakugan no Shana.
An aristocrat-turned-tomb-raider, Lara Croft does her best thinking while plunging off cliffs. See them in Lara Croft: Tomb Raider.
A kind and funny valedictorian, Gwen Stacy likes to make out with Spider-man when her homework's done. See them in Marvel Cinematic Universe.
Though he has a brilliant mind for mathematics, Christopher has a much harder time processing the rest of the world. See them in The Curious Incident of the Dog in the Night-Time.
They say they saved Adam Jensen by turning him into a cyborg, but he's not sure saved is the right word. See them in Deus Ex Series.
All who live know his name, and all who oppose him shall know Death. See them in Darksiders Series.
Kenzo Tenma would have never guessed that ten-year-old he saved would later become a deadly serial killer intent on "thanking" him. See them in Monster (TV Show).