Character Relationships in Line Walker

Cheuk Hoi (played by Michael Miu Kiu-Wai) is a protagonist in Line Walker. Chief Inspector of the CIB who uses unconventional methods to protect undercover agents. After a mentor's murder, he secretly locates deleted operatives while hiding police corruption. A failed 2010 Bangkok mission shifts his focus to training Cheng Suk Mui. Later imprisoned, he opens a café and faces internal scrutiny over alleged gang ties. Chum Foon-hei (played by Benz Hui Siu-Hung) is a protagonist in Line Walker. A ruthless triad boss who reforms after his son's death. Initially evading undercover infiltration, he later assists police in dismantling rival drug networks and arresting criminal leaders. Presumed dead, he returns to Hong Kong to hunt an international syndicate leader, blending his underworld expertise with covert law enforcement goals. Chui Tin-tong (played by Benjamin Yuen Wai-Ho) appears in Line Walker. A principal investigator for the newly established Security Intelligence Agency (SIA). He is recruited to lead specialized operations targeting internal corruption and external criminal threats, working within a newly formed intelligence framework to manage sensitive undercover cases. Cheng Suk-mui (played by Priscilla Wong) appears in Line Walker. An unverified police operative who assumes command after Inspector Lai Sui Kuen is assassinated. She partners with Cheuk Hoi to locate missing undercover agents and counter institutional corruption, marking her transition from an unvetted recruit to a critical figure in high-risk undercover operations. Sit Ka-keung (Bao Seed) (played by Raymond Lam Fung) appears in Line Walker. A CIB undercover officer who fronts as an ice deliveryman. He initially clashes with fellow agent Ting Siu Ka before collaborating closely, developing romantic feelings for her. He survives intense triad infiltrations and continues his covert police service years later despite internal investigations. Ngai Tak-lai / Wai Cho-wing (played by Kenneth Ma Kwok-Ming) appears in Line Walker. The principal investigator of the Security Intelligence Agency (SIA) who recruits personnel for covert operations. His true identity is Ngai Tak Lai, the younger half-brother of triad leader Victor Ngai. He leverages deep underworld connections to lead SIA initiatives, balancing family loyalty with his official police mandate. Tseung Kei-tsz (Madam G) (played by Mandy Wong) appears in Line Walker. A CIB Chief Inspector tasked with internal investigations following Cheuk Hoi's prison release. Suspecting him of gang collusion, she monitors his activities while navigating the institutional restructuring and oversight challenges that arise from the agency's expansion. Tau A-hei (played by Sisley Choi Si-Pui) appears in Line Walker.

Character Relationship Map: Line Walker

Line Walker (2014) Poster

Line Walker (2014) character relationship network mapped with AI analysis. Explore the connections, alliances, and conflicts between characters.

Characters

Key Relationships

Story Analysis

Overall narrative architecture across all 1 seasons

Plot Progression

  1. Season 1: Infiltration Phase
  2. Season 1: Escalation Phase
  3. Season 1: Crisis Phase
  4. Season 1: Convergence Phase

Line Walker (2014) · 7.9/10 · crime