Michael Clayton

George Clooney

As Michael Clayton

Tom Wilkinson

As Arthur Edens

Tilda Swinton

As Karen Crowder

Sydney Pollack

As Marty Bach

Michael O'Keefe

As Barry Grissom

Ken Howard

As Don Jeffries

Sean Cullen

As Gene Clayton

Merritt Wever

As Anna

Austin Williams

As Henry Clayton

Robert Prescott

As Mr. Verne

Terry Serpico

As Mr. Iker

David Lansbury

As Timmy Clayton

Bill Raymond

As Gabe Zabel

David Zayas

As Detective Dalberto

Christopher Mann

As Lieutenant Elston

Denis O'Hare

As Mr. Greer

Julie White

As Mrs. Greer

Frank Wood

As Gerald

Heidi Armbruster

As Anna's Sister

Sharon Washington

As Pam

Danielle Skraastad

As Bridget Klein (voice)

Cynthia Mace

As Wendy (voice)

Jonathan Walker

As Del (voice)

Michael Countryman

As Evan (voice)

Douglas McGrath

As Jeff Gaffney

Pamela Gray

As Cindy Bach

Julia Gibson

As Stephanie Clayton

Jennifer Van Dyck

As Ivy

Susan McBrien

As Jean

Amy Hargreaves

As Interviewer

Susan Pellegrino

As Secretary

Rachel Black

As Maude

Matthew Detmer

As Todd

Kevin Hagan

As Raymond Clayton

Susan Egbert

As Michelle

John Douglas Thompson

As Jail Guard

Edward Furs

As Milwaukee Captain

Remy Auberjonois

As Fifth Year

Katherine Waterston

As Third Year

Pun Bandhu

As Fourth Year

Jason Strong

As First Year

Wai Chan

As Chinese Dealer

Alberto Vazquez

As Player #1

Brian Koppelman

As Player #2

Richard Hecht

As Auctioneer

Brian Poteat

As Deposition Lawyer

John Gerard Franklin

As Correction Officer

Paul Oquist

As Starter

Andrew Hunter Sherman

As U / North (voice)

Gregory Dann

As Cop

Cathy Diane Tomlin

As Cop #2

Sam Gilroy

As Copy Kid

Maggie Siff

As Attorney #1

Sarah Nichols

As Barry's Assistant

Jordan Lage

As Partner

Neal Huff

As First Associate

Paul Juhn

As Second Associate

Tom McCarthy

As Waiter (voice)

Tony Gilroy

As Taxi Driver (voice) (uncredited)

Patrick Askin

As Auction Bidder (uncredited)

Angelo Bonsignore

As Videographer (uncredited)

Kevin Cannon

As Auction Worker (uncredited)

Clem Cheung

As Landlord (uncredited)

Emelie Jeffries

As Raymond Clayton's Nurse (uncredited)

Josh Mowery

As Lawyer (uncredited)

Kimmy Suzuki

As Copy Shop Clerk (uncredited)

Steven Weisz

As Executive (uncredited)