In 2004 she made her feature film debut in Resident Evil: Apocalypse. She appeared in episodes of Dark Oracle in 2004 and the Power Strikers in 2005. Marshall’s best known role has been as Amy Fleming in the TV series Heartland since 2007. She played the same role for the 2010 TV movie A Heartland Christmas. She has also starred in the short Travel Plans in 2011 and the movie Mutant World in 2014. Marshall won a Gemini Award in 2013 and was nominated for a Young Artist Award in 2004.
