 Mandy Wong portrays Vicky / Mung Sam-ling (蒙心凌), known as Ah Mung (阿檬), an undercover trainee mentored by Madam Jo.Daniel Chau portrays Suen Siu-kit (孙少杰), known as Young Master Kit (杰少), an UC trainee mentored by Laughing, and Fong Chun-Long's younger twin brother.He goes undercover on a mission assigned by Laughing in episode 14, but his identity was revealed when his ear piece was discovered by Michael So.