She played the roles of Margaret Clemence in Brookside, Julie Fitzjohn in Holby City, Sarah Williams in The Chase, Allie Westbrook in Waterloo Road, and Tess Harris in Emmerdale.

[4][5] In 2012 the kiss was broadcast to over 5 billion people when it was included as part of the London 2012 Olympics opening ceremony directed by Danny Boyle.

[6] Other roles have included Julie Fitzjohn/Bradford in Holby City, Suzie Davidson in Clocking Off, Jackie Armstrong in ITV's Christmas Lights/Northern Lights/City Lights, Sarah Williams in BBC's The Chase and Helen Enright in All at Sea.

In 2007, she had a lead role in the BBC TV 3 part series Superstorm directed by Julian Simpson.

Stephenson's role in the soap also reunited her with her co-star from The Chase, Gaynor Faye, who had played the character of Megan Macey since 2012.