The Great Buck Howard

John Malkovich Buck Howard

Emily Blunt Valerie Brennan

Steve Zahn Kenny

Tom Hanks Mr. Gable

Colin Hanks Troy Gable

Patrick Fischler Michael Perry

Ricky Jay Gil Bellamy

Griffin Dunne Jonathan Finerman

Debra Monk Doreen

Adam Scott Alan

Wallace Langham Dan Green

Jonathan Ames Edward Kelly