Kar debuted in A Broken-Hearted Nurse, a 1953 drama film directed by Chen Huan-Wen.
In 1955, Kar appeared in The Strange Case of Three Wives, a crime film directed by Poon Bing-Kuen.
Kar was most admired in How to Get a Wife, a 1961 comedy film about the urban middle class with office romance directed by Chun Kim.
After retirement, Kar appeared in Money and I, a 1971 comedy film directed by John Law.
[1] Kar died of chronic obstructive pulmonary disease at her home in Bangkok, on 21 November 2022, at the age of 87.