Presumably not a member of the household. One of the main characters of Meme House. The concept of Stands - the physical embodiment of a person's soul - also somewhat carries over to Meme House, with The World and Killer Queen making appearances on the streams. Joel usually discusses JoJo's many Parts with his chat while playing as a character originated from JoJo, as well as reference JoJokes - JoJo related memes. The series is one of Meme House's biggest influences (if anything, Meme House is a JoJo fan fiction in The Sims), with multiple characters originating from JoJo making appearances in the series. It became most popular from the ongoing 2012 David Productions anime adaptation.
It started publication on the Weekly Shonen Jump magazine in 1987 and is still being published to this day, although in another magazine, Ultra Jump.
JoJo's Bizarre Adventure is a popular manga series written by Japanese mangaka Hirohiko Araki. Cover of Volume 1 of JoJo's Bizarre Adventure, featuring left-to-right: Dio Brando, Jonathan Joestar and Danny