Munro was born on a cattle station near Charleville, Queensland, before she moved with her family to a property west of Millmerran. She attended Fairholme College in Toowoomba where she became the schools drama captain. She attended The Womens College at University of Queensland and was appointed the cultural director. She appeared in many college productions, particularly of Shakespeare and Alan Ayckbourn plays. In 2004, she graduated from the Queensland University of Technology with a Bachelor of Business in Communications. In 2008, she graduated from NIDA. In 2011, she attended The Groundlings school of improvisational comedy, the Ivana Chubbuck studios, and Film Fighting LA, all in Los Angeles.