After completing high school, Prout attended McGill University for one year, where she majored in English literature. The following summer she booked two new acting projects, and so decided to drop out of the university. Prout has a younger sister named Jennifer.
Prout started acting at the age of 10. She has said that the decision to go into acting was in response to a "horrible teacher in grade 2" who stifled her and made her withdraw; in response Prout's mother asked 'what can I do to make you happy again?'. The answer was acting and starting Tae Kwon Do lessons.
Prout made her feature film debut as Abby Miller in the 2005 movie Elektra, which was a commercial as well as critical failure. She has also had guest appearances on television shows such as Stargate SG-1, Cold Squad, The Dead Zone. In 2010, Prout portrayed the Southern vampire named Lucy in The Twilight Saga: Eclipse.
In 2010, Prout starred as Miranda in Seven Deadly Sins, a two-part miniseries which premiered on Lifetime on May 23. She is also set to be cast in an unnamed short film filmed in Hawaii. She also starred in My Super Psycho Sweet 16: Part 2 as Alex Bell, Skye Rotter's sister and in Maternal Obsessions as Taylin, a pregnant high school senior.she is also famous for playing the role of char chamberlin in the new series the lying game 2011 she is the best friend of Sutton Mercer also her secret cousin.