Leon Frederic is a supporting character in the anime The Most Notorious "Talker" Runs the World's Greatest Clan. He was originally the leader of the renowned B-rank Seeker party known as the Winged Knights, later called the Heavenly Wing Knights. This party was widely admired for its formidable strength, humility, diligence, and unwavering dedication to justice. Leon himself is a Knight-class seeker and carries a strong sense of duty and honor. After his party's dissolution or change in circumstances, he joins the clan Wild Tempest, which is founded and led by the protagonist Noel Stollen. Within Wild Tempest, Leon takes on the role of sub-leader. His background as a former party leader and his experience in high-level adventuring make him a capable and reliable second-in-command. He is sociable and empathetic, able to build and maintain strong relationships with his comrades. His motivations center on upholding the principles of justice and supporting the growth of his new clan. Throughout the story, Leon adapts from leading his own independent party to serving as a loyal subordinate and advisor to Noel, demonstrating flexibility and a commitment to the larger goal of the clan. His notable abilities are those of a Knight, emphasizing combat prowess, defense, and leadership in battle.