Brian d'Arcy James

as Peter Moira

as Walter

as Dennis

as Dr. Lydell

as Trey Ruffa

as Dr. Fred Fason

as Bo

as Bruce

as Richard Damrosch

as Dr. Kemp

as Officer Krupke

as Derek Bishop

as The General (voice)

as Mark Giuliano

as Anton

as Brian Wilson (uncredited)

as Victor LeConte

as Jimmy Brennan

as President of the United States

as Tom Sheffield

as Logan

as Joseph A. Walker

as Stone

as Bad Brad

as Sheriff Jones

as Robert Kunkel

as Giroux

as Professor Henry Murray

as Andrew Baker

as Jerry

as Matt Carroll

as Mark

as Ludwig van Beethoven

as Henry Hickey

as Bill Broughton

as Shrek

as Christopher Flynn

as Walter

as Skippy

as Husband in Restaurant

as Ted Frank

as Frank Houston

as Wheeler

as Self

as Tim

as Detective Nolan

as Irish Eddie

as Dr. Felcher

as Lloyd

as Al Michaels (uncredited)

as Frank Wild (voice)

as Brinkley

as Adam Brubeck

as Self - Nominee