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 potential Supernatural episode about Sam and Dean investigating a ghost of a young girl in the girls' bathroom at an old middle school with unfinished business which causes her to not rest until she tells her story.
