 Cheng's filmography has been described by critics as "infantile" coupled with "terrible storytelling".His father, Norman Cheng (鄭東漢), is the chairperson and CEO of EMI, and formerly of the Asia Pacific division of PolyGram and then Universal Music.Ronald Cheng started his relationship with Charlene Choi, a popular Hong Kong female singer and actress, in 2004, after starring as lovers in the film Hidden Heroes.