The Great Buck Howard Cast
The cast of The Great Buck Howard.
John Malkovich
as Buck Howard

John Malkovich portrays Buck Howard.

Emily Blunt
as Valerie Brennan

Emily Blunt appears as Valerie Brennan.

Steve Zahn
as Kenny

Steve Zahn takes on the role of Kenny.

Tom Hanks
as Mr. Gable

Tom Hanks plays Mr. Gable.

Colin Hanks
as Troy Gabel

Colin Hanks portrays Troy Gabel.

Patrick Fischler
as Michael Perry

Patrick Fischler embodies Michael Perry.

Ricky Jay
as Gil Bellamy

Ricky Jay is seen as Gil Bellamy.

Griffin Dunne
as Jonathan Finerman

Griffin Dunne takes on the role of Jonathan Finerman.

Debra Monk
as Doreen
Adam Scott
as Alan
Wallace Langham
as Dan Green
Jonathan Ames
as Edward Kelly
Jon Stewart
as himself
Kelly Ripa
as Herself
Jacquie Barnbrook
as Sheila Heller
Casey Wilson
as Charity
Stacey Travis
as Cindy Crown
Dale Waddington
as Sleeping Woman
Jay Leno
as Himself
Conan O'Brien
as Conan O’Brien
Gary Coleman
as Gary Coleman
Michael Winslow
as Michael Winslow
Jack Carter
as Jack Carter
Martha Stewart
as Martha Stewart
Regis Philbin
as Regis Philbin
George Takei
as George Takei
Mary Hart
as Mary Hart
Tom Arnold
as Tom Arnold
Don Most
as Tonight Show Producer
Matthew Gray Gubler
as Russell
Dave Attell
as Las Vegas Husband
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