Because you like Oscar Martinez in The Office
Violet Parr is an angsty teen would love to become even more invisible than her superpowers allow. See them in The Incredibles.
When the safety of Hyrule is at stake, Princess Zelda does not hesitate to sacrifice herself for the good of the land. See them in The Legend of Zelda.
As the hero of time, Link is reborn throughout history, always with the purpose of fighting and defeating the evil Ganon. See them in The Legend of Zelda.
R2-D2 has been in the galaxy saving business for decades. Not bad for somebody whose vocabulary is limited to "beep-boop." See them in Star Wars Series.
Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.
Blunt, petty, neurotic, Larry David can never live and let live. See them in Curb Your Enthusiasm.
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.
Carol Peletier's credo: your strength comes from who you are, not who you used to be. See them in The Walking Dead.
Charlotte York is an idealistic art curator who loves horses, tennis and Elizabeth Taylor movies. See them in Sex and the City.
T'Challa is a regal superhero with the weight of the world (and particularly his nation) on his shoulders. See them in Marvel Cinematic Universe.