Based on available materials for the 1979 anime "Animation Kikō Marco Polo no Bōken", character listings and plot summaries focus exclusively on Marco Polo, his father Nicolò, and his uncle Matteo as central figures. These sources contain no reference to a character named "Wang Zhu". Mentions of "Zhu Zhu" pertain solely to a contemporary actress involved in unrelated projects, including a separate Netflix series about Marco Polo distinct from this anime.