
Gus Birney was born Augusta Marsh Birney, in New York, to actor parents. She is an Actress, Model, and Songwriter. Her mother Constance Shulman, and father Reed Birney raised her and her brother Ephraim Birney around the theater world of New York City. Gus's grew up in performing art schools and got one of her first jobs in a Clean and Clear campaign at 14. She signed with Click Models, and began modeling walking in such designers as Kanye West and Vivianne Hu. And at 16 she was cast in Spike's series The Mist, and dropped out of High School to pursue acting full time. She has since gotten her GED, and now works with State Management for modeling. She also continues to writes and records her music

I'm Thinking of Ending Things
2020 · as Aunt Eller / Tulsey Town Girl 2

Old Soul
as Teri

Floating Carousel
2025 · as Nicole

Happiness for Beginners
2023 · as Kaylee

Plan B
2021 · as Megan

Here and Now
2018 · as Lucie

Darcy
2017 · as Darcy

The Man in the Woods
2020 · as Suzie Duvall

Ghosted
2025 · as Joan

Asleep in My Palm
2024 · as Millah

Swallow Grass Snakes
2019 · as Devin

Three Birthdays
2023 · as Joyce

Giving Birth to a Butterfly
2023 · as Marlene

A Rainy Day in New York
2019 · as Student Film Crew

Couple A Cards
2023 · as Nancy

The Arrow at Rest at Every Instant of its Flight
2026 · as Violet