Mylaine Gagnier was born on March 1, 1997 in Ottawa, Ontario, Canada and is fully bilingual in French and English.
Mylaine started dancing at École de Danse Louise at the age of 3 and advanced to competitive dancing from the age of 7 to 20. She trained in multiple styles including Contemporary, Jazz, Hip Hop, Tap, Broadway, Ballet and more making her a well rounded dancer and performer and winning multiple awards in groups and alone. She attended a specialized arts high school (Béatrice-Desloges) and was part of the theatre/acting program from grade 7-10. She has been involved in multiple school productions playing main roles as well as supporting roles.