Because you like Geordi La Forge in Star Trek: The Next Generation
Terry Jeffords (and his muscles) may look ferocious, but inside he's just a caring mama hen. See them in Brooklyn Nine-Nine.
Mike Hannigan is a lawyer-turned-pianist who loves to tap into his kooky side. See them in Friends.
Andy Bernard is a preppy Cornell grad who's very likely to break into an acapella performance. See them in The Office.
Through raised to be a gentleman, Laurie has a mischievous sense of humor. See them in Little Women.
Hannah Horvath is kind of a mess, but she owns her messiness in a way few people do. See them in Girls.
Sarah Kerrigan is pretty much the Queen Bitch of the Universe. See them in StarCraft .
Charles Xavier is a telepath who believes mutants and humans are both good at heart and can live in harmony. See them in X-Men Series.
Krusty The Clown somehow makes life sillier and more somber at the same time. See them in The Simpsons.
Whether it's punching a meteor or saving a teen from jumping, Superman tries to be in as many places as Kryptonianly possible. See them in DC Extended Universe.
Free-spirited Annie Hall goes through life saying "La-di-da, la-di-da, la la." See them in Annie Hall.
For Wreck It Ralph, it's not easy being the bad guy. Especially when you've been designed to destroy but really desire love. See them in Wreck-It Ralph.