Harrow played journalist Kate Reynolds in the horror film ' (1981) starring Sam Neill, and worked with Neill again in Krzysztof Zanussi's film '. She starred in the New Zealand film "Shaker Run" in 1985, and played Lizzie Dickinson in the BBC series "Lizzie's Pictures" (1987). She won the Australian Film Institute Award for Best Actress in a Leading Role for her performance in "The Last Days of Chez Nous" (1992). In 1990, Harrow played the tart-tongued, ignored wife in a cunning family of rich brewers in "Sins of the Father", Episode 13 of the Inspector Morse series for ITV, starring John Thaw. That year, she also starred in the ABC-TV miniseries "Come in Spinner", and played the role of Imogen Donahue in Agatha Christie's Poirot "The Kidnapped Prime Minister". Her most recent television performance in Britain was as Kavanagh's wife Lizzie in the series "Kavanagh QC", also starring Thaw. She left the programme after the 3rd series (transmitted in 1997) to move to America.