Will A. Zeppeli was on a ship with a crew studying Aztec ruins when he was younger when his father put on the mask and killed everyone in the crew but his son. After this horrific event, Zeppeli travels the world in order to destroy the mask, and sees a man cure someone using the Ripple. Zeppeli is then directed to his master Tonpetty, who teaches him to use the Ripple. However, Tonpetty foresees Zeppeli's death during his training, warning him that should he complete his training he will surely die. Zeppeli doesn't share this fact until the fight with Tarukus, where he afterwards gives his power to Jonathan, whom he trained after the Joestar's house burns down. His grandson is Caesar Anthonio Zeppeli.
Guide A-160's name was not revealed until the fourth chapter. This shinigami does his role as a shinigami, ensuring souls cross over peacefully. He also gives those about to commit suicide one more chance at life.
A Dokuajirogasa Castle ninja whose real name, like those of most of the Dokuajirogasa ninja team, is unknown. Usually works in pair with Ninja B of the same team, and is the tsukkomi between them.
L.A. Boom Boom is a minor antagonist in Steel Ball Run and the youngest member of the Boom Boom Family along with his father Benjamin and his older brother Andre. (Source: JJBA Wikia)
He is the last surviving member of the Kashvar, an alien race of evil wizards who deemed themselves superior to all other species. He is one of the Black magicians responsible for the creation of Hiredugarn. Hoi traveled to earth in the thirteenth movie in search for the other half of his creation. His intentions were to make Hiredugarn whole again so he would wreak havoc throughout the universe.
A key character in the anime, the Exile was the one who originally instructed Scar’s brother in the ways of the Grand Arcanum, the Ishbalan version of alchemy. At the time of his introduction in the anime the Exile was living alone in the southern refugee camp after he had been banished from Ishbal by the Ishbalans for using alchemy. When Scar accidentally wandered into his hut he learned of his brother's training under the Exile, and sought to learn how to complete the Philosopher’s Stone from him. After Mustang and his men arrived looking for Scar, the Ishbalan refugees were rounded up with the intention of being transferred to state-run camps set up to house Ishbalan refugees; however, the military had to separate the Exile from his own people after they attacked him. As a result, he was set to be moved independently from the main group for his protection. When Ed and Al arrived in the camp and spoke with him he revealed that the Ishbalan people were once alchemists, practicing the Grand Arcanum to reshape the things that Ishbala had given them. It is implied that this was once a highly respected position in Ishbalan society; however, times changed and the practice of the Grand Arcanum gradually became a taboo, as it was felt to go against the teachings of Ishbala by reshaping the things that Ishabala had given the Ishbalans. During this conversation the Exile revealed that the only difference between the regular method of producing the Philosopher’s Stone and the Ishbalan method for producing the stone was the number of people who had to be transmuted into the stone. He was last seen at the end of the anime returning to Ishbal with the Ishbalans to help rebuild their country and culture.