Ada Choi
To Catch the Uncatchable (棟篤神探) is a 25-episode TV drama series produced by TVB of Hong Kong, which stars Dayo Wong as the genius (albeit physically weak and with asthma) CID Mok Tsok Tung (莫作棟) and Ada Choi as Vivi Lee Wai Wai (李慧慧), an insurance agent, with Marco Ngai and Michael Tong as major background characters.