Michael Clayton

George Clooney

Karen Crowder

Tilda Swinton

Arthur Edens

Tom Wilkinson

Marty Bach

Sydney Pollack

Don Jeffries

Ken Howard

Barry Grissom

Michael O'Keefe

Mr. Greer

Denis O'Hare

Bridget Klein (voice)

Danielle Skraastad

Chinese Dealer

Wai Chan

Mrs. Greer

Julie White

Ivy

Jennifer Van Dyck

Player #1

Alberto Vazquez

Walter

Tom McCarthy

Gerald

Frank Wood

Player #2

Brian Koppelman

Henry Clayton

Austin Williams

Waiter (voice)

Tom McCarthy

Fifth Year

Remy Auberjonois

Gabe Zabel

Bill Raymond

Cindy Bach

Pamela Gray

Stephanie Clayton

Julia Gibson

Auctioneer

Richard Hecht

Del (voice)

Jonathan Walker

Pam

Sharon Washington

Interviewer

Amy Hargreaves

Wendy (voice)

Cynthia Mace

Secretary

Susan Pellegrino

Evan (voice)

Michael Countryman

Maude

Rachel Black

Todd

Matthew Detmer

Jail Guard

John Douglas Thompson

Anna

Merritt Wever

Deposition Lawyer

Brian Poteat

Lieutenant Elston

Christopher Mann

Milwaukee Captain

Edward Furs

Third Year

Katherine Waterston

Correction Officer

John Gerard Franklin

Mr. Verne

Robert Prescott

Mr. Iker

Terry Serpico

Fourth Year

Pun Bandhu

Raymond Clayton

Kevin Hagan

First Year

Jason Strong

Timmy Clayton

David Lansbury

Starter

Paul Oquist

Anna's Sister

Heidi Armbruster

Maude

Rachael Black

Jail Guard

John Thompson

U / North (voice)

Andrew Hunter Sherman

Gene Clayton

Sean Cullen

Michelle

Susan Egbert

Detective Dalberto

David Zayas

Jeff Gaffney

Douglas McGrath

Cop

Gregory Dann

Cop #2

Cathy Diane Tomlin

Copy Kid

Sam Gilroy

Attorney #1

Maggie Siff

Barry's Assistant

Sarah Nichols

Jean

Susan McBrien

Partner

Jordan Lage

First Associate

Neal Huff

Second Associate

Paul Juhn

Director

Tony Gilroy