Career
Liang Po Po: The Movie was one of his most notable performances of a gangster figure. Cheng"s first screen appearance was in the 1998 film Money Number Enough, and the following year he was cast in Liang Po Po. Cheng was best known for portraying thuggish, brutal types prone to violence, as a homage to his alleged past career as a loan shark.
I Not Stupid was a noticeable first reversal of this stereotypical role – he was cast in a minor role as a police officer tasked with rescuing hostages.
Cheng was more active in the getai scene as a compere, along with other part-time actors like Lin Ruping, Liu Lingling and Wang Lei.