Sun Wai Keung joined the HKRep as full time actor upon graduation from the School of Drama, HK Academy for Performing Arts in 1994.

He played in over 50 productions, including The Crucible, Forever and Ever, Hong Kong for Sure!, Uncle Vanya, Secret of Resurrection, A Matter of 4x6, A Dream Like a Dream, Rape Virus, Formula of a Thunderstorm, The Eccentricities of a Nightingale, Haunted, Haunted Little Star, Departure 00:00, Sweet & Sour Hong Kong,, A Small Family Business, Peach Blossom Fan, The Importance of Being Earnest, Rotate 270¢X, Whose Life Is It Anyway? and Zheng He and The Emperor, Rep 2¡mBoxer¡n,Blindness and De Ling and Empress Dowager Ci Xi.

He was the assistant director of Haunted, Haunted Little Star, the playwright in black box productions The Lost and Found Trilogy (2007), story creator of Detective Woman, and the designated vocal and singing artist in Cantonese for the Walt Disney cartoon character Winnie-the-Pooh.

Having been nominated at the HK Drama Awards several times, Sun was awarded Best Supporting Actor (Tragedy / Drama) for his work of Mr. Wang in A Dream Like A Dream in 2003. At 15 th HK Drama Awards In 2006,he was awarded Best Actor(Tragedy / Drama) for his work of Ken Harrison in Whose Life Is It Anyway?.

At 16 th HK Drama Awards In 2007, he was nominated Best Supportting Actor (Tragedy / Drama) for his work of the First Blind Man in Blindness (World Premiere).

http://www.mydramaactor.com/sun/