It is a repeated collaboration between Elaine Yiu (姚子羚) and Wayne Lai (黎耀祥) in new drama (拳王) after Rear Mirror (載得有情人) series in 2014.

Elaine posted an online message: “I work with Wayne in King Maker (造王者) and Rear Mirror drama in 2012 and 2014. He is a veteran actor who deserves my respect and I hope to receive his guidance. It is an enjoying process and we get to discuss and analyse the script together. I love to watch his on-screen performances and looking forward to it. #拳王 #enjoying #practise #a stylish man and branded car”

Source: https://ol.mingpao.com/ldy/showbiz/latest/20201108/1604835732647/%e8%b7%9f%e9%bb%8e%e8%80%80%e7%a5%a5%e7%9b%b8%e9%9a%946%e5%b9%b4%e5%be%8c%e5%86%8d%e5%90%88%e4%bd%9c-%e5%a7%9a%e5%ad%90%e7%be%9a%e7%94%b1%e6%88%b0%e6%88%b0%e5%85%a2%e5%85%a2%e8%ae%8a%e5%be%97%e4%ba%ab%e5%8f%97