Pet Shop serves as the guard of Dio Brando's mansion in Egypt. It ruthlessly kills any who may trespass or it deems as suspicious. When it first appeared, Pet Shop decapitates two large dogs with ease and smashes a beggar (employed by Abdul to find Dio's mansion) and his car with his stand. Pet Shop possesses incredible aerial agility and the ability to swim. Ultimately, Pet Shop is defeated by Iggy, but is able to severely injure him by severing his leg in the process. (Source: JJBA wiki)
Mannish Boy is one of Dio's henchmen, and the user of Death 13. He is one of only three infant stand users seen to date, with the others being Shizuka Joestar and the Green Baby.
The younger brother of Daniel J. D'arby. He is DIO's butler and the first of his Stand users to be encountered in his mansion. An adept video game player and puppet collector, he challenges Jotaro and Kakyoin to a gaming competition. His Stand is Atum, a robotic humanoid with the ability to steal souls and detect lies. It is named after the Egyptian god of the same name. After being outsmarted by Jotaro, Terence falls into defeat and fear over his loss. He is then beaten up by Star Platinum and is sent flying away, enabling Jotaro and company to advance the mansion.
He is a minor antagonist in Part III: Stardust Crusaders. Gray Fly appears as an old man with a horseshoe hair style, and an imprint of a stag beetle on his tongue. He seems normal at first but is plain evil, taking up a modus operandi of killing his victims by cutting off their tongues with his Stand. His sadistic personality drives him to kill people just for fun. He has been known as a stand user who causes multiple accidents and kills people to steal their valuables. Kakyoin notes that Dio didn't need to use a spore to control him, so he was probably just hired to kill the Joestar group. (Source: JoJo's Bizarre Encyclopedia)
Jacqueline de Signore's assistant.