Millie Davis is a Canadian actress who played Ms. O / Big O in the TVOKids/PBS Kids series Odd Squad, Riley in the Amazon Prime television show Dino Dana, Summer in Wonder, and Gemma Hendrix in Orphan Black.
Balthazar Blake, an apprentice of the legendary magician Merlin, must train his old teacher's successor - an introverted but resourceful physics prodigy - in the art of sorcery to prevent Morgana le Fay and her army from returning and take control of the world.
