Her earliest TV appearance was in the scrapyard sitcom, Steptoe and Son, when she was 15 years old. Aged 19, she starred as 'Janet' in the 1979 TV film The Knowledge about a group of aspiring Londoners learning The Knowledge with Mick Ford and Nigel Hawthorne. Kim appeared with her sister Gillian, in 1982, on the children's TV show "On Safari" and in the 1983 Minder episode "Senior Citizen Caine". She took a break from acting to pursue a career in the Metropolitan Police from 1984 to 1996.
Kim has two sons, Peter, born in July 1991, and Alexander in September 1993.
She appeared as The Wicked Queen in the pantomime Snow White at The Cresset Theatre, Peterborough over Christmas 2008 and again at the same theatre in 2009 as the Wicked Queen in Beauty And The Beast.
In December 2011 Kim appeared as the Forest Fairy in the production of Babes In The Wood at the Pomegranate Theatre in Chesterfield.