Shizuka Joestar

Shizuka Joestar is the Baby in part 4 with the stand power "Actung Baby", named after the U2 album. Shizuka is found by Joseph and Josuke.

Shizuka's stand power is to turn herself and everything around her invisible, depending on her mood. It works in many ways, making her unfindable underwater to Joseph, or making 2 of Rohan's fingers invisible.

She is seeable because Joseph dressed her up and gave her glasses. When shopping for baby things, Joseph ends up paying much too much money for baby supplies.