Though Horn is one of the renowned Canadian actresses, she is still single and all of her personal profile is kept low and secret. Information related to her love affairs, boyfriend, girlfriend and married life is unknown. It is believed that she is still single and she has not been the loving wife of anyone yet.
Besides acting, Horn was interested in swimming and water polo as a child. Her sister, Waneek Horn-Miller is a water polo player. With the completion of her secondary education, she joined Dawson College where she majored in theatre arts. She finally earned her Bachelor's degree in 2005. In 2004, she appeared in the short movie Might of the Starchaser. While she was in Dawson College, she also starred in several productions. In 2006, she appeared in the TV miniseries Indian summer: The Oka Crisis. For starring the role of Kayleigh in the TV movie Moccasin Flats: Redemption, she earned her first Gemini Award nomination. She is also famous for her role in the movies like The Trotsky, Journey to the Center of the Earth, Leslie, My Name Is Evil and many more. The actual figure about her net worth and salary is unknown.