Peter Quill, also known as Star-Lord, is a charismatic and adventurous half-human, half-Celestial. As the leader of the Guardians of the Galaxy, he plays a crucial role in protecting the universe from cosmic threats. In 'Avengers: Endgame,' Star-Lord is pivotal in the battle against Thanos, contributing his skills and leadership to the Avengers' efforts to restore order. His quick wit, love for music, and personal growth make him a beloved character, blending humor with heroism as he navigates his complex identity and relationships.