Kate Tsui Tsz Shan is a former Hong Kong actress, who is best known for her work with Television Broadcasts Limited (TVB), her movies, and her singing career.

[2] After completing her degree in the United States, she returned to Hong Kong and worked as a translator and project coordinator at an engineering firm.

Following guest roles in The Zone and When Rules Turn Loose in 2005, Kate made her official TV debut in the TVB series, La Femme Desperado in 2006.

On the other hand, her leading role in Speech of Silence, in which she played a deaf character, had earned her a Top 10 position in the Best Actress category of the aforementioned awards show.

In Highs and Lows (2012), Tsui portrayed an extremely tragic character that struggled with substance abuse, gang rape, and eventually, drug dealing.

Kate described her experience of filming this drama as "being on an emotional roller coaster", to the extent that she did not wish to speak to anyone or pick up the phone after work.

[6] Film director, Patrick Kong, also noted in his column that Tsui's acting had greatly matured in Highs and Lows, particularly in her portrayal of emotional scenes.

Kate starred opposite Taiwanese actors, James Wen and Chris Wang, in the "sorrow" themed story.

In 2007, through a series of auditions, Tsui was cast as the female lead, alongside A-list actors Tony Leung Ka-fai and Simon Yam, in Eye in the Sky, which is a film produced by Johnnie To and directed by Yau Nai-hoi.

In 2009, Kate starred in I Corrupt All Cops, a Hong Kong crime drama, directed by Wong Jing, who was impressed with the success of her debut performance in Eye in the Sky.

[25] She spoke of the concept behind her jewelry designs, "It's something that I like to remind myself of, that there are many situations in life that aren't worth splitting hairs over, and if I simply adjust the angle that I'm viewing things from, I can easily see a different perspective.

"[25] Between the years of 2015–2016, Kate completed her Jewelry Design course at GIA and Colored Gem Professional Level II at the Gübelin Academy.