Between that time in 2004, she played a recurring role which was Sarah Cairns in EastEnders, who appeared in 21 episodes, She suffered from being mentally unstable, and was a barmaid who worked in Angie's Den club, she started to become obsessed with Martin Fowler, and started to stalk him, then she tried to split Martin up from his wife Sonia Fowler following a drunken night together.
Pargeter has appeared in seven films such as Calendar Girls (2003), Mad George (2004), Angel (2007), Reuniting the Rubins (2010), The National Union of Space People (2016), The Little Stranger (2018) and the upcoming movie called Shafted, which is currently still in pre-production.
Pargeter was a member of the Stephen Joseph Theatre Company in Scarborough, North Yorkshire, where she was directed by Sir Alan Ayckbourn in a trilogy of plays known collectively as Damsels in Distress, which subsequently transferred to the West End.
Later parts include Sugar Daddies, again written and directed by Alan Ayckbourn; She Stoops to Conquer at the Royal Exchange, Manchester, for which she was nominated for a second Manchester Evening News award; In June 2005, she played title role of Effie Gray in The Countess, playing opposite Nick Moran at the Criterion Theatre, Piccadilly.
Pargeter has starred in several Christmas Pantomimes for children over the years, she appeared in Alice in Wonderland, Jack and the Beanstalk and Cinderella.