She is best known for having been the host of the HGTV series House Hunters for nine years, and for her recurring role as manicurist Polly Chae on Las Vegas for four seasons.

[1] Whang, in temporary remission from stage 4 breast cancer, wrote and performed a solo show about her experience, and was writing a book about it at the time she died.

[4] Whang hosted House Hunters from 1999 to 2007 on HGTV and had a recurring role as Polly the spa manager on NBC's drama Las Vegas.

In 2002, Whang won the Best Up & Coming Comedian Award at the Las Vegas Comedy Festival, for her controversial alter ego character, Sung Hee Park.

Since January 2011, Whang had portrayed Carol Cheng, Brenda Barrett's wedding planner and rumored to have been involved with Franco, on the TV series General Hospital.