Byron is a martial artist, an international certified lifeguard, swimming coach, fitness trainer and diving coach. In 2005, he joined the Mr. Hong Kong Contest and was awarded the most outstanding performance. Since then, he has been very active participating in TV series and films. He first worked with Artwalker as a model in the “Permanent Residence” Photo Album.

Thomas, born in Hong Kong, is half Chinese and half British, studied in Australia. He is a professional DJ and appears in TV commercials and print ads representing various major brands. Thomas has been a guest cast in Artwalker's earlier films “City without baseball” and “Permanent Residence”.

Winnie was the top 5 finalist in Miss Hong Kong Pageant 1999. Since then, she has started her career in the entertainment industry, acting in many films, TV shows and commercials such as “Color of the truth”, “Central Affairs”, “Don’t open your eyes”, “Beauty and the 7 beasts”, etc. before her leading role in “Amphetamine”.

Linda is an internationally recognized yoga coach. She has participated in several mainland Chinese films, such as “Zhu Lin Qi Xian” in 2004 and “Shanghai Wang Shi” in 2005. “Amphetamine” is her first major role in an Artwalker production.

Simon is a guest cast in both Artwalker's earlier films “City with baseball” and “Permanent Residence”, in addition, he is also the assistant costume designer in “Permanent Residence” and “Amphetamine”.