Kirstin was born in Orillia, Ontario, Canada. Kirstin excelled in dance and visual arts throughout elementary and high school, and she is still an active painter. As a teenager, Kirstin toured Orillia and surrounding areas with the Park Street Players before attending the York University Acting Program in Toronto. In four years at York she had the opportunity to hone her acting skills in a variety of genres from Elizabethan theatre to modern drama and absurdism. She has appeared in films presented at Cannes, the Toronto International Film Festival, and several other festivals worldwide.