Jacques grew up in Coventry, Leamington Spa, and Warwick. Her first major role was as Annie Miller in Desperate Romantics on BBC Two. She has six siblings, and one of her sisters suffers from epilepsy and was submitted to a brain surgery. For this reason, Jacques has participated in numerous initiatives towards finding a cure for epilepsy. She is known for her roles in Shank, WPC 56, and London Kills.