Katie Douglas was born on October 19, 1998, in Burlington, Ontario, Canada12. She began her acting journey at the young age of six, participating in local theater productions and commercials3. Douglas's early exposure to performing arts came through her involvement with the Great Big Theatre Company in Burlington, where she honed her skills in various productions1.

Throughout her childhood and teenage years, Douglas balanced her burgeoning acting career with her education. She attended Nelson High School in Burlington, maintaining her studies with the help of a traveling tutor to accommodate her acting commitments1. This dedication to both her craft and education laid the foundation for her successful transition from child actor to respected young adult performer in the Canadian entertainment industry.

Katie Douglas's breakthrough role came in 2013 when she was cast as Sally Wilcox in the Canadian children's series "Spooksville"12. This fantasy action TV show, based on Christopher Pike's book series, aired on Discovery Family and marked Douglas's first starring role in a television series34.

As Sally Wilcox, Douglas portrayed a fearless and resourceful girl who helps her friends uncover the mysteries of their supernatural town1. Her performance in "Spooksville" earned her critical acclaim and industry recognition, including a nomination for Outstanding Performer in a Children's Series at the 41st Daytime Creative Arts Emmy Awards in 20144. Although the series only ran for one season, consisting of 22 episodes, it played a pivotal role in Douglas's career, showcasing her ability to bring depth and energy to her characters and marking her transition from a promising young talent to a recognized actress in the industry12.

Katie Douglas maintains a relatively private personal life, focusing primarily on her acting career. Born and raised in Burlington, Ontario, she continues to reside in Canada while pursuing her acting endeavors1. Douglas is known to be close to her family, though she rarely shares details about her personal relationships in public2.

Outside of acting, Douglas has expressed interest in filmmaking and writing. She has mentioned studying film at university, with aspirations to explore different aspects of the entertainment industry beyond acting1. In her free time, Douglas enjoys playing guitar and singing, occasionally sharing snippets of her musical talents on social media12.