Dr. Leonardo deka Vinci is a member of the secretive Eagle Talon Society. He becomes involved when the Joker travels to Japan to steal the society's secret weapons and unleash chaos. As the Justice League pursues the Joker, anomalies in Batman's behavior prompt an investigation. The Eagle Talon Society, with Dr. Leonardo deka Vinci, initiates a time travel mission to uncover the reason for Batman's unusual actions. The character is portrayed by FROGMAN, who also serves as the director and screenwriter of the production.