Because it involves personal privacy, this question cannot be answered completely. If the actress's name is published on Baidu Know, it may cause great harm to her.
Baidu knows that it is a public platform, and it is immoral to post personal privacy on the public platform. Baidu knows it can't and shouldn't pass this answer.
So the heroine can only be called Ms. Xia.
Ms. Xia attracted public attention because Sun Jianxi, Jia Pingwa's "imperial critic", published a new book, Jia Pingwa on the Cliff, which revealed the emotional storm Jia Pingwa experienced in the 1990s and the inside story of Jia Pingwa's marriage change. According to the book, in the early 1990s, Jia Pingwa met a lady Xia, who played a role in a stage play adapted from a novel by Jia Pingwa, and they had some contacts. Therefore, Jia Pingwa's wife thought that her husband was "emotionally derailed", which triggered a quarrel between them and eventually escalated into divorce.