Peyton Kennedy (born January 4, 2004) is a Canadian actress. She is best known for her role as Dr. O on the PBS Kids television series, Odd Squad (2014–2017). She is also known for her film roles in The Captive (2014), American Fable (2016), and Lavender (2016). She played Kate Messner in the Netflix series, Everything Sucks! (2018), where she played a 15 year old girl who is trying to figure out her sexuality.