Although Sarah was born and brought up in Yeovil in Somerset, an appearance in a cult advert for Manchester-based Boddingtons Bitter in 1994 (as Vera, who likes nothing better than "a good rub down with chip fat") led to a series of roles as northern women (Dawn Rudge in Peak Practice (1993), Allie Henshall in Cutting It (2002) and Natalie Holden in Blackpool (2004)), causing many people to believe that she is a native of the north-west.
Mother, with husband James Murray, of daughters Ella-Jayne Murray (May 2008-January 2009) and Nell Murray (b. November 21, 2009).
In mid-January 2009, her then-8 month old daughter, Ella-Jayne Murray, with James Murray, died at their home after succumbing to complications from a congenital heart defect. The couple knew about her condition and she had already been operated on twice to try to solve it.
Her daughter Ella-Jayne was born five weeks premature.
Sarah's brother is the musician and music producer John Parish, who is well-known for his collaborations with PJ Harvey, Eels and Tracy Chapman.
Co-owner, with Dervla Kirwan, of production company, "Aphra Productions".
Returned to work 11 months after giving birth to her daughter Nell to begin filming Monroe (2011).
Delivered her daughters Ella-Jayne and Nell both via Caesarean section.
Was 9 months pregnant with her daughter Nell when she completed filming The Pillars of the Earth (2010).
Sarah has an older sister called Julie.
Appeared alongside David Tennant on three occasions: as the Empress in Doctor Who: The Runaway Bride (2006) on Doctor Who (2005), as Natalie Holden in Blackpool (2004), and as Tricia Hamilton in Recovery (2007).