Is Shikui Yan from Guo Jiaban?

No. Guo Jiaban refers to Yan Shikui, an employee of Beijing Perfect Jianxin Film and Television Culture Co., Ltd., who was born in Tongliao, Inner Mongolia on May 7, 1956. He is a professional actor and director, graduated from the Performance Department of Beijing Film Academy, and is an employee of Emei Film Studio, so Yan Shikui is not a Guo Jiaban.