Leonardo DiCaprio as Rick Dalton
Brad Pitt as Cliff Booth
Margot Robbie as Sharon Tate
Emile Hirsch as Jay Sebring
Margaret Qualley as "Pussycat"
Timothy Olyphant as James Stacy
Julia Butters as Trudi Fraser
Austin Butler as "Tex"
Dakota Fanning as "Squeaky"
Bruce Dern as George Spahn
Mike Moh as Bruce Lee
Luke Perry as Wayne Maunder
Damian Lewis as Steve McQueen
Al Pacino as Marvin Schwarzs
Brenda Vaccaro as Mary Alice Schwarzs
Nicholas Hammond as Sam Wanamaker
Samantha Robinson as Abigail Folger
Rafał Zawierucha as Roman Polanski
Lorenza Izzo as Francesca Capucci
Costa Ronin as Wojciech Frykowski
Damon Herriman as Charles Manson
Lena Dunham as "Gypsy"
Madisen Beaty as "Katie"
Mikey Madison as "Sadie"
James Landry Hébert as "Clem"
Maya Hawke as "Flower Child"
Victoria Pedretti as "Lulu"
Sydney Sweeney as "Snake"
Harley Quinn Smith as "Froggie"
Dallas Jay Hunter as "Delilah"
Kansas Bowling as "Blue"
Parker Love Bowling as "Tadpole"
Cassidy Vick Hice as "Sundance"
Ruby Rose Skotchdopole as "Butterfly"
Danielle Harris as "Angel"
Josephine Valentina Clark as "Happy Cappy"
Ronnie Zappa as "Top Hat"
Dyani Del Castillo as "Pebbles"
Scoot McNairy as "Business" Bob Gilbert, a villain on Lancer
Clifton Collins Jr. as Ernesto "The Mexican" Vaquero on Lancer
Marco Rodríguez as the Bartender on Lancer
Courtney Hoffman as Rebekka
Heba Thorisdottir as Sonya
Dreama Walker as Connie Stevens
Rachel Redleaf as Mama Cass
Rebecca Rittenhouse as Michelle Phillips
Rumer Willis as Joanna Pettet
Spencer Garrett as Allen Kincade, a TV journalist
Clu Gulager as the Larry Edmunds Bookshop owner
Martin Kove as a Bounty Law Sheriff
Rebecca Gayheart as Billie Booth
Kurt Russell as Randy and the narrator
Zoë Bell as Janet
Michael Madsen as Sheriff Hackett on Bounty Law
Perla Haney-Jardine as a hippie drug dealer
James Remar as "Ugly Owl" Hoot, a villain on Bounty Law
Kate Berlant as the Bruin Theater ticket booth attendant
Daniella Pick as Daphna Ben-Cobo
Monica Staggs as Connie
Tom Hartig as Bill "Sweet William" Fritsch
Omar Doom as Donnie
David Steen as Straight Satan David
Corey Burton as the Bounty Law Promo Announcer
Toni Basil as a dancer
Rage Stewart as Harvey "Humble Harve" Miller
Quentin Tarantino as the audible but unseen director of the Red Apple cigarettes TV commercial. Tarantino can also be heard announcing the title of Bounty Law.
Ramón Franco as a Land Pirate on Lancer, and Rubén, the Bruin Theater manager
Raul Cardona as "Bad Guy" Delgado, a Land Pirate on Lancer
Maurice Compte, Vincent Laresca, Lew Temple, Craig Stark, JLouis Mills, Eddie Perez, Gilbert Saldivar, and Keith Jefferson as the other Land Pirates on Lancer.
Sayuri as Brandy, Cliff Booth's pit bull