Brennan was born and raised in Oklahoma where she took a liking to performing at a very young age. Beginning her journey into the arts at Hickman's Music School, where she started learning stage presence before she learned to tie her shoes. Arts stayed present in her life from middle school musicals to traveling acting troupes and high school show choir she always sought out the opportunity to perform, choosing to pursue a career in acting in 2019. While in Oklahoma she worked on films such as The Pale Door (2020), In The Face of Evil (2021). Recently having moved to LA she has stayed busy, booking a leading role in the film Miracle at Manchester (2022) alongside many seasoned actors. With a strong support system behind her, Brennan is a passionate, driven, and seasoned actress ready to take on any kind of role.-