Born in Dublin, Ireland, the fourth child of plumber Christopher Vavasseur, who died when she was 16, and Adrienne,[2][3][4] Vavasseur has appeared in films and on stage, and has done a number of advertisements and voice-overs.
The first was Evelyn, in which she played the title role (the daughter of Pierce Brosnan's character).
[5] In 2007, Vavasseur appeared in Becoming Jane, a movie based on the private life of Jane Austen; that same year she starred in a British television adaptation of Charles Dickens's The Old Curiosity Shop.
In 2010, she appeared as a possessed teenager in the Spanish horror film Exorcismus,[5][6] alongside Richard Felix, Doug Bradley and Stephen Billington.
[7] In 2023, she presented 'Love, Style, repeat', a fashion programme for Virgin Media Ireland.