The Satiporoja Beetle (サティポロジア・ビートル, Satiporojia Bītoru) is a species of insect native to Southeast Asia. The muscle fibers of the beetle's intestines have a higher Ripple conduction rate than the human body. Ripple users use dried fibers to sew together special Ripple conducting scarves. 30,000 beetles are utilized to make each scarf.
Bruto (ブルート, Burūto) was one of the many people who were outside the cafe during Joseph Joestar and Straizo's battle. In an attempt to impress a girl, he temporarily detains Joseph after the latter had blown up Straizo, along with the cafe. Joseph quickly kicks him in the nose and runs off, leaving Bruto on the ground holding his face while the girl says that Joseph is way cooler than him. He is omitted from the anime.
Adolf Hitler (アドルフ・ヒトラー, Adorufu Hitorā) and his Nazi army had conquered Czechoslovakia during the escalating second world war at some point after Joseph and Straizo's battle. Hitler believed the Germans were the most evolved people and wanted to control the spiritual and scientific world by trying to use astrology, magic, alchemy, ESP and occult as weapons of war. He also altered the swastika design, as it was originally a magical symbol representing destiny and life found in ruins throughout the world.
He had an information base set up in Mexico where Rudol von Stroheim had already learned about Straizo's actions and was investigating Santana. When describing the fleshbud DIO implanted in Kakyoin, Joseph compares its sheer emotive power to that which drives a man to follow Hitler. He is omitted from the anime.
An unnamed Hollywood screenwriter and the second husband of Lisa Lisa. She meets him after she starts living in America with her son, Joseph Joestar. They get married in 1948 when Lisa Lisa is 60 years old, making him Joseph's stepfather, 27 years after the death of George Joestar II.
The information below derives from a source not written by Araki. As such, it may or may not be considered canon.
In rey infinito, he is given the surname Greenberg (グリーンバーグ, Gurīnbāgu). He is also over 50 years old when marrying Lisa Lisa, who describes him as a large and warm person. At some point, he carries out philanthropic and humanitarian work alongside Lisa Lisa. However, he eventually falls ill and undergoes chemotherapy. She would prepare him for bed every night, administering his medicine and painkillers. Soon, he becomes bedridden, requiring an oxygen inhaler in his last few months. He passes away around the 1960s with Lisa Lisa always by his side.
In JORGE JOESTAR, he goes by the pen name Motorize Jump (モーターライズ・ジャンプ, Mōtāraizu Janpu), which is actually an alias of George Joestar II. Since George ends up surviving in the novel but is considered legally dead in England, he has been living in America as a screenwriter, waiting for Lisa Lisa to come back to him.