Katarina Fiallos (She/Her) is a multi-disciplinary artist based in Toronto. She is an actor, singer, director and writer. She holds a BFA from TMU's School of Performance (formerly ryerson) and is currently training at the Stratford Festival as a member of their Birmingham Conservatory.

Katarina has always been involved in performing and creating from a young age and since graduating she has had the opportunity to pursue different ventures in acting, writing and directing for theatre and film.

Her most recent acting credits include Mopsa in The Winter's Tale (Stratford Festival), Mia in Gringas (First Born Theatre), Lisa in Wakey Wakey (Stratford Festival Forum/County Players), and Dorine in La Bête (TIFT).

Along side her work as a performer, Katarina has written and directed her first original work, Morning After, and continues to create. 

Katarina is currently in the 2026 season at the Stratford Festival and can be seen in Saturday, Sunday, Monday and the Tempest.