Healey's television debut was in the recurring role of Katie Moore in BBC Three drama "Burn It" in 2003. Between 2006 and 2009, Healey starred as pupil Janeece Bryant in four series of the BBC One school-based drama series "Waterloo Road", before departing the role in May 2009. Following an extended break from the show, Healey returned to the role during the sixth series in September 2010 as the new school secretary, and continued to appear throughout the entirety of the seventh series. Following the shows relocation to Greenock in Scotland for the eighth series, Healey announced she would be moving north to continue portraying the role. Healey played the role in series eight in August 2012.