Cast of Billie Eilish: The World's a Little Blurry

Billie Eilish portrays herself in this documentary film, offering a personal and candid insight into her journey as a musical artist.

Finneas O'Connell, also known as Finneas, appears as himself in the film. He is Billie Eilish's brother and collaborator, contributing to her music as a producer and songwriter.

Maggie Baird portrays herself in the documentary. She is Billie Eilish's mother and has been a supportive figure throughout her daughter's rise to fame.

Justin Bieber makes an appearance as himself in the documentary, showcasing his friendship and mentorship with Billie Eilish as both artists navigate the music industry.

Orlando Bloom portrays himself in the film. As a fellow celebrity, Bloom shares his perspective on fame and the impact it has on Billie Eilish's life.

Katy Perry appears as herself in the documentary, offering support and guidance to Billie Eilish as a fellow pop star who has experienced the ups and downs of the industry.

Claudia Sulewski portrays herself in the film. She is a popular YouTuber and a friend of Billie Eilish, providing additional insight into Eilish's personal life and journey.

Zoe Donahoe appears as herself in the documentary. She is one of Billie Eilish's closest friends and offers a glimpse into their friendship and the support they provide each other.