George Clooney

Michael Clayton

Tom Wilkinson

Arthur Edens

Tilda Swinton

Karen Crowder

Sydney Pollack

Marty Bach

Michael O'Keefe

Barry Grissom

Ken Howard

Don Jeffries

Sean Cullen

Gene Clayton

Merritt Wever

Anna

Austin Williams

Henry Clayton

Robert Prescott

Mr. Verne

Terry Serpico

Mr. Iker

David Lansbury

Timmy Clayton

Bill Raymond

Gabe Zabel

David Zayas

Detective Dalberto

Christopher Mann

Lieutenant Elston