She trained at the Sandy Gray School of Dancing, and the London Studio Centre on full scholarship. Her long association with the show began for her at the age of 19 when she understudied and played the role on numerous occasions. She later took over as Alternate Christine, and in 2007 she finally returned to the show to take over the role in her own right.
Her other theatre credits include Mission Dorothy in Thoroughly Modern Millie in the first national tour in which she also understudied the title role of Millie, opposite Lesley Joseph and the national tour of Scrooge in the lead role of Isabel/Helen opposite Shane Richie for Bill Kenwright Limited.
More recently she appeared and the original cast of Andrew Lloyd Webber"s revival of Evita directed by Michael Grandage at the Adelphi Theatre, appearing on the original cast recording. In 2010-2011, she toured in the play Master Class with Stephanie Beacham for Theatre Royal Bath Productions directed by Jonathan Church, in which she played Sophie de Palma.
In 2012, she starred as Nellie Collins in Floyd Collins by Adam Guettel at the Southwark Playhouse. North recorded her debut album Make Believe at Abbey Road Studios which was released on Jay Records in October 2008.
Her screen credits include Kate in Hustle for British Broadcasting Corporation and the Les Misérables film.