[5] As a 10 year old, she wanted to be an actress after she saw Andrew Lloyd Webber's musical, Aspects of Love, at The Oxford Playhouse.
[6] Oni started acting while she was living in the United Kingdom, after completing her university degree, by going to drama school.
She secured a place to study at Academy of Live and Recorded Arts (ALRA) in Wandsworth, London, where she acted in numerous plays including Walking Waterfall by Nii Ayikwei Parkes, William Shakespeare's A Midsummer Night's Dream, In Time by Bola Agbaje, God is a DJ and Iya-Ile (The First Wife by Oladipo Agboluaje.
[4] Oni made her TV debut in the UK in the BBC mini-series Vexed, before she moved back to Nigeria.
Her first job was in Nigeria shortly after her return, at Studio 53 Extra where she spent three years learning about TV presenting and production.