Josh Brolin as Eddie Mannix

George Clooney as Baird Whitlock

Alden Ehrenreich as Hobie Doyle

Ralph Fiennes as Laurence Laurentz

Scarlett Johansson as DeeAnna Moran

Tilda Swinton as Thora Thacker / Thessaly Thacker

Channing Tatum as Burt Gurney

Frances McDormand as C. C. Calhoun

Jonah Hill as Joe Silverman

Veronica Osorio as Carlotta Valdez

Heather Goldenhersh as Natalie (Secretary)

Alison Pill as Mrs. Mannix

Max Baker as Head Communist Writer

Fisher Stevens as Communist Writer

Patrick Fischler as Communist Writer

Tom Musgrave as Communist Writer

David Krumholtz as Communist Writer

Greg Baldwin as Communist Writer

Patrick Carroll as Communist Writer

Fred Melamed as Communist Writer

John Bluthal as Prof. Marcuse

Alex Karpovsky as Mr. Smitrovich

Armazd Stepanian as Eastern Orthodox Clergyman

Allan Havey as Protestant Clergyman

Robert Pike Daniel as Catholic Clergyman

Robert Picardo as Rabbi

Ian Blackman as Cuddahy

Geoffrey Cantor as Sid Siegelstein

Christopher Lambert as Arne Seslum

Robert Trebor as Producer of "Hail, Caesar!"

Michael Yama as Chinese Restaurant Maître D'

Ming Zhao as Chinese Restaurant Waitress

Helen Siff as Malibu Maid

Basil Hoffman as Stu Schwartz (Accounting)

Luke Spencer Roberts as Peanut

Ralph P. Martin as Director of Action Western

James Austin Johnson as Studio Assistant at Action Western

Noah Baron as Water Ballet P.A.

Timm Perry as Stage 8 Man at the Door

Noel Conlon as Scotty at the Gate

Natasha Bassett as Gloria DeLamour

Richard Abraham as French Postcard Photographer

Jon Daly as Cop at French Postcard House

Dennis Cockrum as Cop at French Postcard House

Clancy Brown as Gracchus

Mather Zickel as Chunk Mulligan

Tiffany Lonsdale as Ursulina

Clement von Franckenstein as Sen. Sestimus Amydias

Wayne Knight as Lurking Extra

Jeff Lewis as Lurking Extra

Kyle Bornheimer as Extras A.D.

Josh Cooke as Box Breakfast A.D.

Peter Jason as Director

Stephen Ellis as Clapper Boy

Jillian Armenante as Script Girl

Jacob Witkin as Saul of Tarsus

Jack Huston as Cad in Cab

Agyness Deyn as Woman in Cab

Emily Beecham as Dierdre

Benjamin Beatty as Clapper Boy

J.R. Horne as Curly

Caitlin Muelder as Cookhouse Woman

E.E. Bell as Bartender

Kate Morgan Chadwick as Departing Woman

Brian Michael Jones as Sailor

Peter Banifaz as Sailor

Clifton Samuels as Sailor / Dancer

K.C. Reischerl as Sailor

Jeremy Davis as Dancer

Marcos Ochoa as Dancer

Colin Bradbury as Dancer

Ryan Breslin as Dancer

Tyler Hanes as Dancer

Casey Garvin as Dancer

Luke Hawkins as Dancer

Evan Kasprzak as Dancer

Patrick Lavallee as Dancer

Adam Perry as Dancer

Ryan VanDenBoom as Dancer

Alex Demkin as Dancer

Dax Hock as Dancer

Shesha Marvin as Dancer

Mark Stuart as Dancer

Forrest Walsh as Dancer

Michael Gambon as Narrator (voice)

Tomoko Karina as Imperial Garden Waitress (uncredited)

Dolph Lundgren as Submarine Commander (uncredited)

Dean England as Animal Handler (uncredited)

Sandy Mansson as Israelite (uncredited)

Jessee Foudray as Jonah's Daughter Harpist (uncredited)

Ryan Izay as 'Merrily We Dance' Performer (uncredited)

Johnny Otto as Roman Officer (uncredited)

Sergio Kato as Roman Officer (uncredited)

Anibal Silveyra as Roman Officer

James Gregory as Slave (uncredited)

Josiah Black as Electrician (uncredited)