Little Joy's cast list included Huang Lei as Fang Yuan, Hai Qing as Tong Wenjie, Tao Hong as Song Qian, Wang Yanhui as Ji Shengli, Yong Mei as Liu Jing, Zhou Qi as Fang Yifan, Li Gengxi as Qiao Yingzi, Guo Zifan as Ji Yangyang, Liu Jiayi as Lin Leier, and so on.
As I don't know the specific story of William Fockers, I can't determine what was significant about it. However, in general, a first published story can be significant as it marks the start of a writer's journey, introducing their style and themes to the world.
The cast list of Little Husband included Yu Feihong, Yang Wei, Zhang Meng, Tian Yu, Xu Di, Han Tongsheng, Liu Lili, Guan Xiaotong, Bai Zixuan, Han Qing, Liu Tingzuo, Zhang Zijian, etc.
I'm not sure exactly who the cast members are without further research. But it might include actors who can portray Little Richard and other relevant characters in his story.
I'm not sure which 'William Fockers' you are referring to. There may be many people named William. Without more specific information, it's difficult to discuss his first published story.
The cast of a movie or story like 'Little Girl Lost: The Delimar Vera Story' usually consists of actors who are carefully selected to bring the characters to life. However, without further research, it's difficult to name them. It could potentially include some relatively unknown actors as well as some more experienced ones who are good at portraying the complex emotions involved in such a story.