Because you like Billy Costigan in The Departed
Linda Belcher doesn't prescribe to what society deems as "normal." She narrates her life through song, much to the alarm of everyone nearby. See them in Bob's Burgers.
Davos Seaworth is steadfast, intelligent, and trustworthy, which are hard traits to find in a place like Westeros. See them in Game of Thrones.
Mike Hannigan is a lawyer-turned-pianist who loves to tap into his kooky side. See them in Friends.
Driven by obsession and anxiety, Monk bravely overcomes, or at least battles, his fears to help the world. See them in Monk.
Mike Ehrmantraut is rutheless, merciless, and probably the most endearing hitman you've ever met. See them in Breaking Bad.
Sometimes being a supportive girlfriend like Ophelia doesn't work out too well. See them in Hamlet.
Hannah Horvath is kind of a mess, but she owns her messiness in a way few people do. See them in Girls.
Mabel Pines loves sparkles, animals, friendship, and fun. See them in Gravity Falls.
Rhodes has to trust his conscience to guide him through a political struggle that could change the very shape of modern warfare. See them in Marvel Cinematic Universe.
George Costanza is short, stocky, bald, neurotic, and the self-proclaimed "king of the idiots." See them in Seinfeld.
Neal Cassidy is a charming former thief with a heroic side. See them in Once Upon a Time.
