Because you like Dan Dreiberg in Watchmen
A short-tempered guy, Bowser is determined to wreak havoc on the Mushroom Kingdom. See them in Super Mario Bros..
Kevin Khatchadourian is a disturbed, affect-less teen on a dark path. See them in We Need to Talk About Kevin.
Howl puts the "tortured" in tortured artist. He just wants to be recognized for his work, but no one wants to trust a boy that sorta looks like a bird. See them in Howl's Moving Castle.
Emma Woodhouse knows what's best for everyone else. Just don't try to tell her what to do. See them in Emma.
Both brave and foolhardy, Thomas trusts his instincts above all else. See them in The Maze Runner.
A meek schoolteacher, Mary Margaret Blanchard can't remember her past as a spirited, swashbuckling Snow White. See them in Once Upon a Time.
This barber doesn't cut hair. Sweeney Todd sends his clients down a chute to be baked into his partner-in-crime's pies. See them in Sweeney Todd: The Demon Barber of Fleet Street.
Matilda Wormwood is so smart, she taught herself how to be psychic. See them in Matilda.
Ted Logan wants to party on, but if doesn't get an A+ on his history presentation, he'll flunk out and be sent to a military school in Alaska. See them in Bill & Ted's Excellent Adventure.
Handsome Jack is wearing a mask of his own face to hide his scarred real one. See them in Borderlands Series.
Basil Hallward is dominated, soul, brain, and power by Dorian. See them in Dorian Gray.