Will Anthonio Zeppeli is a pivotal character in the anime series JoJo's Bizarre Adventure, specifically in the Phantom Blood arc. As an Italian nobleman and master of the mystical martial art known as Hamon, Zeppeli plays a crucial mentor role to the protagonist, Jonathan Joestar. His expertise in Hamon proves vital in the battle against the vampire Dio Brando. Zeppeli's character is known for his wisdom, courage, and self-sacrifice, as he ultimately gives his life to ensure Jonathan's success. His legacy and teachings continue to influence the series beyond his demise.