Sinclair was born to a pharmacist, Mohammed Anthony John Sinclair, who is British with
Irish,
English and
Scottish ancestry, and Khadijah Abdul Rahman, who is of
Malay descent. She had an older brother, actor
Ashraf Sinclair who died of a heart attack in 2020, and a younger brother, Adam. Due to her father's career, Sinclair grew up in
Croydon,
Saudi Arabia,
Lytham St Annes with her grandmother, and
Cambridge before moving to Malaysia in 1986. She was a British citizen before becoming a Malaysian citizen when she was sixteen years old. She holds a Bachelors in Mass Communication from
Universiti Teknologi Mara. ==Career==