What is the name of the little boy in the sketch joke?

I don't know how many people still remember the little boy who once appeared on the stage with Guo in the Spring Festival Evening. At that time, they were a pair of extremely clever "father and son files". Their sketches are very classic and bring a lot of happiness to the audience. The little boy's name is Xie Yunbin, but the audience should be more accustomed to calling him Dingdong. He is also a very famous child star.