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. At the 10^th Chinese Theatre Awards, she was nominated for Best Supporting Actress for her performance in The Emperor, his Mom, a Eunuch and a Man. In 2026, she was nominated for Best Actress (Tragedy/Drama) for The Tamed and the Tempted and for Best Supporting Actress (Tragedy/Drama) for Le Fils at the 34^th Hong Kong Drama Awards. She was nominated for Best Supporting Actress (Tragedy/Drama) at the 25^th Hong Kong Drama Awards and for Best Supporting Actress at the 3^rd Chinese Theatre Awards for her performance as Hanada Fuyuko in Marriage. She was nominated for Best Supporting Actress (Comedy/Farce) for Actors' Square's Boeing Boeing at the 21^st Hong Kong Drama Awards. Her major performances include The Emperor, his Mom, a Eunuch and a Man, Sleep, The Absolute Task, Lumination of the Forgotten, The Isle, February 14 – a musical, Female N^o7, Reincarnation of the Prunus Mume, In Times of Turmoil, The Imaginary Invalid, The Sin Family, Hello, Dolly! – the musical, A Giant Cookie, I Have a Date with Autumn and Shed Skin. 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.