Witness Insecurity

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-YanKiu Chi Lam
• Bosco Wong Chung-ChakXu wei chen
• Paul Chun PuiKiu Gong Saan / Saan Go
• Ram Chiang Chi-KwongCast
• Cilla KungCast
• Ronald Law Kwan-MoonCast
• Rachel KanCast
• Rosanne Lui ShanCast
• Lee Tin-CheungCast
• Joseph Lee Kwok-LunCast
• Lee Shing-CheongCast
• Eddy Law Tin-ChiCast