Nahanni Johnstone is Canadian actress who portrayed Mrs. Milligan. She was born in Toronto, Ontario, Canada. She is known for her work on The Cutting Edge (1992), The Doghouse (2000) and An Officer and a Murderer (2012). She was previously married to Tristan Avakian.
- She was a successful model in Europe before moving to New York to study acting. She writes, produces and acts with the Ensemble Studio Theatre.
- She was previously married to Tristan Avakian from 2001 to 2014, and had 2 children.
- She played Veronica Rykov on another Epitome series, Open Heart, which features other Degrassi cast members.