Because you like Jason "J.D." Dean in Heathers
Alex DeLarge likes his favorite milk-based, drug-laced cocktail. It helps him get in the mood for a night of "ultra violence." See them in A Clockwork Orange.
Wheatley's got an endless supply of bad ideas that he wants to share. See them in Portal Series.
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.
Cynical, judgmental, and hipper-than-thou, Enid Coleslaw wears her outsider status like a badge of honor. See them in Ghost World.
Derek Shepherd is a talented and passionate neurosurgeon. Some people call him McDreamy. See them in Grey's Anatomy.
A reclusive introvert, Liz Sherman has a temper that's literally lethal. See them in Hellboy.
Harrison Wells is a brilliant scientist full of secrets. See them in DC Extended Universe.
Jean-Baptiste Grenouille may have a phenomenal sense of smell, but he has a weak sense of morality. See them in Perfume: The Story of a Murderer.
Shy and nerdy, Gabriella Montez moved to Albuquerque and quickly became the toast of East High and a darling of the stage. See them in High School Musical.
Susan Pevensie is sensible, practical, and fiercely protective of those she loves. See them in The Chronicles of Narnia.
Insightful about everyone else's neuroses, Rose Lalonde is not as aware of her own. See them in Homestuck.