Ruco Chan and Hawick Lau both graduated from TVB's 1994 Acting Class. The first series that I watched Ruco in was "To Love with Love", where he played Nadia Chan's younger brother.
In "A Kindred Spirit", Ruco played Hawick's friend, who went on a trip with him. When Hawick's character, On Jai, first appeared in the sixth episode of the series, I initially thought that Ruco was the one who was playing Cha Siu Bing's youngest son. Later, I found out that Lau Dan and Hawick are father and son in real life.