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.
A orphaned boy enrolls a school of wizardry, where he learns the truth about himself, his family and the terrible evil that haunts the magical world.
https://m.imdb.com/title/tt0241527/plotsummary#summary-po3390522
