The drama stars Tay Ping Hui, Qi Yuwu, Elvin Ng, Joanne Peh, Chris Tong and Tracy Lee in the main roles with a large ensemble supporting cast.
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Chris Tong 童冰玉 as ASP Zhang Cheng Ling (章岑琳) - Formerly an officer with the Police Coast Guard before being transferred to the SIS.
She also acted in the Malaysian drama, The Adjusters, opposite singer-actor Rynn Lim and starred in her first MediaCorp drama The Family Court in one of the four lead roles.
Chris Christie | Chris Brown | Everybody Hates Chris | Goh Chok Tong | Chris Brown (American entertainer) | Chris Berman | Chris Rock | Chris Moyles | Chris Daggett | Chris | Shanghai Jiao Tong University | Chris Isaak | Chris Brown (American singer) | Chris Rea | Chris de Burgh | Chris Tomlin | Pete Tong | Chris Squire | Chris Hardwick | Chris Tarrant | Chris Daughtry | Chris Paul | Chris Moneymaker | Chris Farley | Chris Evert | Chris Cooper (actor) | Chris Cooper | Chris Carter | Chris Albertson | Chris Roberts |
Elvin Ng pairs up with Chris Tong for the first time; they both starred in C.L.I.F. earlier in the year but rarely shared any scenes together.