From 2004 to 2009, Robertson played Wanda Dollard, an intelligent and sarcastic gas station attendant, on the hit Canadian television series "Corner Gas". In 2010, Robertson's husband and "Corner Gas" co-star, Brent Butt created a new television series, "Hiccups". The show's lead role, a children's author with anger-management issues, was not initially written with Robertson in mind, but she decided to take on the role upon reading the script. The second and final season of "Hiccups" ended on 28 August 2011. Robertson played the role of Principal Moreno in the television movie "Radio Rebel".