Catherine Steadman is an actress and author based in London. She has appeared in leading roles on British and American television but is perhaps best known for playing Mabel Lane Fox in the series Downton Abbey. As well as on screen she has also appeared in the West End where she has been nominated for a Laurence Olivier Award. Catherine lives in Hackney, North London.

Catherine's first novel, Something in the Water, was a number one New York Times bestseller with rights sold in over 30 territories. Film rights were picked up Reese Witherspoon's production company, Hello Sunshine, with Something in the Water becoming a Reeses's book club pick in the US and a Richard and Judy Book club pick in the UK.

Mr Nobody, her second novel, was listed as one of Newsweek's 20 Most Anticipated Books of 2020, and her third novel, The Disappearing Act, released in 2021, was number #1 in on the iTunes Audiobook chart.

Her fourth novel The Family Game will be out Sept 2022.