Cheng Pei-pei
The choice to cast Kenneth Tsang and Cheng Pei-pei, as opposed to Australian Chinese and New Zealand Chinese actors and actresses, was intentional. On this decision, Roseanne Liang said, "What I wanted above all was authenticity", with her adding that, "All of the New Zealand and Australian Chinese actors were Chinese people who had grown up in New Zealand or Australia. I wanted actors who could speak Hong Kong-accented Cantonese as well as Cantonese-accented English". However, middle Chu daughter, Melanie Chu, is portrayed by United Kingdom-based New Zealand Chinese actress Celeste Wong.