Because you like Captain Hook in Once Upon a Time
Frederick Frankenstein is an eccentric (O.K., maybe a little insane) professor who is excited to be delving into his family's past. See them in Young Frankenstein.
Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.
A no-nonsense professor famous for her strictness, Minerva McGonagall only shows her warmer side to those closest to her. See them in Harry Potter Series.
Samantha Jones is a try-sexual who'll try anything once. See them in Sex and the City.
With a song always on her lips and her heart on her sleeve, Maria von Trapp is the governess every kid dreams of. See them in The Sound of Music.
A machete-wielding mass-murderer, Jason Voorhees is a terrifying blank slate. See them in Friday the 13th.
The ever-cheerful Tonks can change her appearance at will, but she can't seem to get rid of her clumsiness. See them in Harry Potter Series.
Matt Flamhaff is not too concerned about being part of the popular crowd. Too bad his best friend is. See them in 13 Going on 30 .
Mike Wheeler loves Dungeons and Dragons, even after his real life starts imitating the game. See them in Stranger Things.
Elena Gilbert is the quintessential girl-next-door who gets involved with the new "boy" at school. See them in The Vampire Diaries.
C is for cookie, and that's more than good enough for him. See them in Sesame Street.