Caitlin Brennan was born in 1999. She has lived her entire life in Colorado with her immediate family. She studied fine arts at the University of Colorado Denver, graduating in 2024 with a Bachelors of Fine Arts, an emphasis on drawing and painting. Throughout her time in college, Caitlin had the opportunities to participate in group exhibitions, performances, create self-published works, and co-curated an exhibition. In 2023, Caitlin completed a month-long study abroad at the Burren College of Art in Ballyvaughan, County Clare, Ireland. Her exhibition 100 Years Later featured at the 2024 CU Denver BFA Thesis Show, at RedLine Contemporary Art Center, Denver, Colorado.