She went to Hollywood where she had a small part in Pearl Harbor in 2001, but then shifted her acting career to Los Angeles, where she was cast for several guest appearances in U.S. TV series Las Vegas and Entourage.
Based in Singapore since 2004, Ong has co-starred with Thai actor Gof Akara and Sharon Au in Channel 5 drama Tiramisu.
In 2007 she was chosen as the host for The Contender Asia, a reality programme about Muay Thai that is produced by Mark Burnett Productions.
She is a World Vision Singapore Goodwill Ambassador, travelling to Phuket, Thailand to learn more about poverty, HIV/AIDS and child prostitution issues.
[6] Starring in Point of Entry Season 2 to 4 as DSP Kara Yeo, Home Team Liaison from Specialised Crime Division of CID in Singapore Police Force.