Millie Davis

Millie Davis (born December 6, 2006, in Toronto, Ontario) is a Canadian screen actress whose work spans family television, prestige drama, and feature films. She first gained wide attention for her sharp, comedic turn as Ms. O/Big O on the TVOKids and PBS Kids hit Odd Squad, quickly becoming a familiar face to young audiences.

Davis expanded her profile with the role of Riley in Amazon Prime’s Dino Dana, and reached global viewers as Summer in the acclaimed film Wonder. She has also appeared in darker, adult-oriented storytelling, including a notable part as Gemma Hendrix in the award-winning series Orphan Black, underscoring her range across genres.

Alongside on-camera performances, Davis has built a strong voice-acting résumé, lending her voice to characters such as Billie in SuperKlaus, Dusty in Mighty Express: Mighty Trains Race, and Chloe in The Magic Hockey Skates. Her credits also include The Best Man Holiday, Apple Mortgage Cake, Portal to Hell!!!, and Just A Friend.