The series was originally announced to be a spin-off of the 2011 series Yes, Sir. Sorry, Sir! featuring the popular character "Miss Cool" portrayed by Chung. A costume fitting press conference was held on 21 November 2011 at Tseung Kwan O TVB City Studio One Common Room at 12:30PM.
Linda Chung Ka-Yan
Kiu Chi Lam
Bosco Wong Chung-Chak
Xu wei chen
Paul Chun Pui
Kiu Gong Saan / Saan Go
Ram Chiang Chi-Kwong
Cilla Kung
Ronald Law Kwan-Moon
Rachel Kan
Rosanne Lui Shan
Lee Tin-Cheung
FX: The Series63%
Murder in a Small Town69%
Hill Street Blues76%
DCI Banks71%
Vigil71%
21 Jump Street72%
Baretta65%
The Inspector Lynley Mysteries73%
Grace67%
Agatha Christie's Marple78%
Dragnet69%
Five Days58%
Interrogation68%
77 Sunset Strip72%
Barnaby Jones70%
Fool Me Once71%
56 Days73%
Rookie Blue76%
Jack Irish67%
Dalgliesh67%
