Cynthia Koh

Koh has one younger sister. Her father works in the Singapore Civil Defence Force while her mother is a housewife. Koh received her education at Saint Anthony's Canossian Secondary School. While still enrolled in Singapore Broadcasting Corporation's (now MediaCorp) 10th Drama Artiste Course and after a three-month Mandarin-language training stint in Taiwan, Koh started acting at the TV station at the age of 18 in May 1992. After having acted in almost 46 dramas, Koh went on to make her debut on stage in the critically acclaimed Men at Forty-Eight in 1997. Later, she won the Best Actress Award in Star Awards 1999 with her breakthrough performance in Stepping Out, in which she played a long-suffering woman fighting against her fate. This role earned her a nomination in the same category at the Asian Television Awards.

Koh was also part of the cast in three of MediaCorp TV Channel 8's long-running dramas. The 3 long-running dramas include: Holland V (Year 2003, 125 episodes), Portrait of Home (Year 2005, 100 episodes), Kinship (Year 2007, 86 episodes). Koh's role as Fu Baozhu (傅宝珠), a greedy and bossy woman in Portrait of Home earned her a Best Actress nomination at the Star Awards 2005; the award ultimately went to Huang Biren. While filming Mediacorp Channel U's blockbuster drama Show Hand in December 2011, it was reported that Koh delayed an ovarian cyst operation to finish filming the series. In 2012, after having not won an award for near to 15 years at the annual Star Awards, Koh made her comeback and won her second Top 10 Most Popular Female Artiste Award.

Koh has since won 3 Star Awards for Top 10 Most Popular Female Artistes, namely in 1997, 2012 and 2022.