Because you like Murph in Interstellar
Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.
Ryan Howard is a temp turned executive turned failing small-time media mogul. See them in The Office.
Danny Zuko's car is auto-matic. Its system-matic. Its hyyyyydro-matic. Why, its greased lightning! See them in Grease.
Billy Batson is a troublemaking teen grappling with a pretty weird superhero identity crisis See them in DC Extended Universe.
Jessica Rabbit isn't bad. She's just drawn that way. See them in Who Framed Roger Rabbit.
Jacob Kowalski is just a baker caught up in an otherworldly adventure. See them in Fantastic Beasts and Where To Find Them.
Matilda Wormwood is so smart, she taught herself how to be psychic. See them in Matilda.
Thanos is an intergalactic warlord, on the hunt for infinite power. See them in Marvel Cinematic Universe.
A hurricane of a human being, Marla Singer is destructive and unforgettable. See them in Fight Club.