Which TV Show Has Your Favorite Main Character of All Time?

Some TV shows are great because of their stories, but others become unforgettable because of the characters at the center of them. Whether it's a character's personality, development, intelligence, humor, or the way they handle difficult situations, certain main characters stay with us long after a show ends.

Which TV show has your favorite main character of all time, and what makes that character so special to you? Is it their personality, their journey, or simply how well they're written?