Zuko is the Crown Prince of the Fire Nation, known for his distinctive scar across his left eye, which he received during a duel with his sister Azula. Driven by the desire to regain his honor, Zuko abandons his father's nation and joins the Avatar Aang's group in an attempt to capture the Avatar. He is initially portrayed as a moody, antagonistic character with a strict code of honor. However, Zuko possesses a strong moral compass and a capacity for compassion, which causes him to frequently struggle with his role as a prince. His interactions with others, especially his uncle Iroh, are crucial in his character development, teaching him empathy and the value of inner peace. Over time, Zuko develops a strong bond with his group members, ultimately finding his own path to redemption.

Ryan Gosling's character in La La Land is Sebastian, a dedicated jazz musician who dreams of opening his own jazz club in Los Angeles. Sebastian is passionate about the purity of jazz and its historical importance. He is committed to his art and has a strong work ethic, often clashing with modern society's preference for mainstream music. Sebastian has a charming and idealistic nature, valuing authentic connections with others. He is a dreamer who remains resolute in his goals, even when faced with the challenges of balancing his ambitions with love and personal fulfillment.