Raised in Potchefstroom, Vanderbijlpark and Bloemfontein, Antoinette also attended school in the United States of America where her father did research and teaching at various universities.
In her third year she tried her hand as producer and director of the play, The Woman Who Cooked her Husband, a black comedy by the British playwright Debbie Issit.
She went on to win a South African Film and Television Award for her portrayal as the cancer stricken photographer, Ella Winter.
In 2016 she landed her first lead in an international film - An Act of Defiance - the story of Bram Fischer, directed by well known Dutch director Jean van de Velde.
[citation needed] For her portrayal as Molly Fischer, she earned a Best Actress award at the Cape Town International Film and Market Festival 2017.