2026 Adjudicators

A multi-instrumentalist as well as a musical theatre performer, Marnie Kersten holds a Bachelor of Music in Voice Performance from Queen’s University as well as a Diploma in Musical Theatre from the Randolph Academy. Ms. Kersten runs her own thriving private voice studio, and is on the voice faculty at the acclaimed musical theatre program at Sheridan College. She has also taught voice at the Randolph College in Toronto, and adjudicates musical theatre regularly throughout Canada. Marnie focuses on giving her students a strong technical foundation as well as introducing a diversity of popular styles. She has students performing professionally around the world, as well as attending vocal and theatre programs at various post-secondary institutions and arts high schools. Marnie also performs professionally, both as an actor and as a musician throughout Canada. Selected credits include Jersey Boys, Joseph, Buddy: The Buddy Holly Story, Mary Poppins, Hairspray and Oliver.