Pak is credited with over 55 films and many TVB series.
On November 30, 1942, Pak was born as Wai-yin Chan in Kuala Lumpur, Malaysia.
[1] In 1959, Pak became a Hong Kong actress and debuted in The Fake Marriage (aka Great Pretender), a 1959 Comedy film directed by Lo Duen.
Pak was a lead actress in many Drama and Comedy films including Affectionately Yours (1960), The Great Devotion (aka Love Cannot Read)(1960), So Siu Siu (1962), The Eternal Beauty of Hsi-Shih (aka Hsi Shih: The Beauty of Beauty)(1965), and Chicken and Duck Talk (1988).
Pak's husband is Wong Man-wai, a footballer who competed at the 1960 Summer Olympics.