"Avatar: The Last Airbender" is a masterclass in character development, especially with Zuko's journey. Watching him transition from a conditional antagonist to a key ally was nothing short of brilliant, his internal struggle is so relatable. The way the writers tease out his complexity over the seasons, especially through the pivotal moments in the "Zuko Alone" episode, really showcases how well they crafted his character arc. Similarly, "BoJack Horseman" dives deep into the flaws of its characters and manages to tackle heavy themes like depression and addiction. The way BoJack's relationships evolve, particularly with Diane, is heartbreaking yet incredibly realistic. Both shows show that animation can explore profound character growth, making them stand out in the medium.