1. Who's in A Colorful Life, Take My Word for It, Hidden Treasures, and Revolving Doors of Vengeance?
Ellesmere Choi

2. Who's in Not Just a Pretty Face, Blade Heart, Armed Reaction 4, and Greed Mask?
Lo Hoi Pang

3. Who's in Survivor's Law, A Taste of Love, Gods of Honour, and Country Spirit?
Winnie Yeung

4. Who's in Summer Heat, An Awakening Story, Untraceable Evidence 1&2, and A Handful of Love?
Joe Ma

5. Who's in Love Bond, Let's Face It, and War of In-Laws?
Wong Ka Lok (Stephen Wong)

6. Who's in Healing Hands 3, The W Files, Witness to a Prosecution 2 and King of Yesterday and Tomorrow?
Halina Tam

Is it Margaret Chung?

Still wrong.  It is an actor.  Keep trying!