Meet Brett.
Best known for portraying a co-star role acting alongside Kelly Reilly on Paramount Network's original series Yellowstone, Season 4, Episode 5: Under a Blanket of Red and Bree in the film Finding Love in Big Sky, alongside Hedy Nasser and Jonathan Stoddard. Brett has also photographed with world-renowned photographer, David Yarrow, and booked principle roles for The Alliance Guild in The Yellowstone Club, Wrangler, The Travel Channel, and Northwestern Energy commercial work.
Brett Ashley McMillan learned the value of hard work from an early age. It was then that drawing and painting sparked her interest in the arts, winning hundreds of art contests including 1st place nationally with the “Daughters of the American Revolution”. In addition, Brett was humbled to have her art piece hung in the White House during Clinton’s presidency. This creative outlet gave rise to her acting and modeling career. Brett went on to compete in the Miss USA Minnesota and won “Best Dress” and “Best Swimwear.” Brett is currently represented by NASS Talent Management.
In her spare time, Brett enjoys interior design, writing (book coming out in 2025!), cosmetic injecting at Juniper Face + Figure (she’s a nurse, too!), weightlifting, health/fitness, hiking, and spending quality time with her three boys, daughter and husband in Bozeman, MT.
Brett + Family.
Acting skills run through this beautiful family. Her husband, Sean Groth, as well as her son’s Dalton and Easton and her youngest son, Hugh, who began working at just two weeks old for Wrangler, are all working actors.
Brett also is an incredible children’s acting coach and has helped her sons land roles in major motion pictures such as BROKE starring Wyatt Russell and Dennis Quaid, as well as RUST starring Alec Baldwin. Brett enjoys teaching and encouraging their creative sides when projects come their way.
Montana’s #1 Med Spa
In addition to acting and modeling, Brett is the founder and cosmetic injector of the popular cosmetic injectable business, Juniper Face + Figure.
Awards! Juniper Face + Figure was voted the #1 Med Spa in Montana in 2024 and voted “Best of Montana” in Botox and Filler Injections two years in a row!
Fun Fact! Brett has injected cast members from Kevin Costner's famous television show, "Yellowstone", an award-winning movie producer, professional athletes, costume and makeup artists for Hollywood's elite actors, a Miss USA contestant and an ex-girlfriend to Elvis Presley!
Writer.
Brett continues to pursue all of her dreams and aspirations. She is currently writing her first book to inspire women not to settle, leave toxic and exhausting relationships, heal from narcissistic abuse and teaches others how to go after what they’ve always wanted - freedom, a life worth living, and epic love.
A story of self-preservation, starting over and rebuilding the life you deserve. Her hope is to inspire others to do just that - overcome, survive, and thrive.
Follow Brett’s Journey.
