in september 2012 smith played the title role in "mrs biggs", a five-part series on itv. in 2013, she appeared in the channel 4 series "dates". in january 2014, she starred in the two-part bbc drama "the 7.39". in march 2014, she appeared in the itv crime drama "the widower" as the first wife of serial killer malcolm webster. later that year, she featured in the series "who do you think you are?" and played cilla black in the three-part itv drama series "cilla".