Kiki Cheung joined the HKRep in 2012. She was awarded Best Actress at the 12^th Hong Kong Theatre Libre for her performance in The Ward. In 2026, she was nominated in Best Actress (Tragedy/Drama) for The Tamed and the Tempted and Best Supporting Actress (Tragedy/Drama) for Le Fils at the 34^th Hong Kong Drama Awards. She was nominated Best Supporting Actress (Tragedy/Drama) at the 25^th Hong Kong Drama Awards and Best Supporting Actress at the 3^rd Chinese Theatre Awards for her performance as Hanada Fuyuko in Marriage. She was nominated Best Supporting Actress (Comedy/Farce) for Actors' Square's Boeing Boeing at the 21^st Hong Kong Drama Awards. Her major performances include Sleep, The Absolute Task, Lumination of the Forgotten, The Impossible Trial – a musical (2019, 2022, 2023), The Isle, February 14 – a musical, and Female N^o7. In 2018, she collaborated with Cheung Ngar Lai in creating Ladies, Bon Voyage – a Cabaret.

Kiki graduated with honours from the School of Drama, The Hong Kong Academy for Performing Arts, majoring in acting.