How old was Mary Mouser in Cobra Kai season 1? Is Peyton List and Mary Mouser friends in real life?

Mary Mouser was 22 years old portraying a 17-year-old while filming Season One of the series “Cobra Kai.” Peyton List and Mary Mouser actually have quite a friendly relationship in real life.

Mary Mouser appeared in guest starring roles on CSI: Crime Scene Investigation, Without a Trace, The King of Queens, Monk, Inconceivable, Scrubs, and One Life to Live.

Mary Mouser began her career at the age of six when she was chosen as a photo double for Abigail Breslin’s character in Signs.

Mary Mouser did voice work for animated features such as Dragon Hunters, Tarzan II, and Pom Poko. Mouser had a recurring role on NCIS as Leroy Jethro Gibbs’ daughter Kelly.

Mary Mouser guest starred in Lie To Me and in Ghost Whisperer as the character Madison. Mouser has appeared on a Mind Field episode (S2 E5) on the channel VSauce on YouTube.