The Threshold of a Persona is a 2009 TVB television drama from Hong Kong produced by Marco Law. It was broadcast between June and July 2009. The drama features the work of the Immigration Department of Hong Kong.

Roger Kwok Chun-on is a Hong Kong television actor and former singer, who works for the TV station TVB. Kwok was born in Hong Kong, and his native family roots are in Zhongshan, Guangdong. He is one of the three actors who won Best Actor three times at the TVB Anniversary Awards.