Johnson is also well known for playing Julie Emrick on The WB's college drama Felicity, where she started her music career and released her first single called "Puddle of Grace". She is also known for playing the rookie cop Stacy Reynolds on the Lifetime police drama The Division, and the champion jockey Tina Sharp on the TV drama Wildfire.
Between 2008 and 2013, Johnson became one of the stars of the Canadian hit series Flashpoint. For her starring role as SRU negotiator Jules Callaghan, she was nominated for the 2009 Gemini Awards for Best Performance by an Actress in a Continuing Leading Dramatic Role.
In 2015 she became a naturalised Canadian citizen.[1]