Haig graduated from the Western Australian Academy of Performing Arts in 2008. Since then, she has appeared in numerous Australian films and television series, including lead roles in Road Kill, Wasted on the Young and Crawl. She starred in the second season of The Elephant Princess in 2011.
In 2011, she was considered for the role of Andromeda in the film Wrath of the Titans alongside several other actresses. The part ultimately went to Rosamund Pike. Haig was also considered for the role of Gwen Stacy in the 2012 film The Amazing Spider-Man, but lost the part to Emma Stone.
In 2012, Haig made several guest appearances on the American FOX science-fiction series Fringe, as Henrietta "Etta" Bishop. In 2014, Haig starred in CBS legal drama Reckless. The show was cancelled after one season. During that year, she also had a recurring role as Queen Elsa in the fourth season of Once Upon a Time. In July 2015, Haig was cast in Syfy futuristic pilot Incorporate.
- Internet Movie Database on the