Line Walker Word Search Puzzle – Search Characters, Actors and Actresses. Word Search Puzzle Solver. The details of undercover police officers are deleted from a police database and a senior officer is left struggling to know who are the undercover officers and who are the criminals. Find out the following actor, actress, character names, and other movie-related words hidden in this word search puzzle based on this movie.. This includes identifying and searching for words that are related to : Wai, Hung, Hing, Hui Siu, Xing Yu, Ben Yuen, Clara Lee, Choi Kwok, Louis Koo, Jade Leung, Jason Wong, Moses Chan, Francis Ng, Nick Cheung, Rebecca Zhu .