Robin Williams
Role: Parry
Amanda Plummer
Role: Lydia
Michael Jeter
Role: Homeless Cabaret Singer
William Jay Marshall
Role: Jamaican Bum
Chris Howell
Role: Red Knight
Adam Bryant
Role: Radio Engineer
Paul Lombardi
Role: Radio Engineer
David Hyde Pierce
Role: Lou Rosen
Warren Olney
Role: TV Anchorman
Frazer Smith
Role: News Reporter
Kathy Najimy
Role: Crazed Video Customer
Harry Shearer
Role: Sitcom Actor Ben Starr
Melinda Culea
Role: Sitcom Wife
James Remini
Role: Bum at Hotel
John Ottavino
Role: Father at Hotel
Brian Michaels
Role: Little Boy
Jayce Bartok
Role: First Punk
Dan Futterman
Role: Second Punk
Bradley Gregg
Role: Hippie Bum
William Preston
Role: John the Bum
Al Fann
Role: Superintendent
Stephen Bridgewater
Role: Porno Customer
John Heffernan
Role: Stockbroker Bum
Richard LaGravenese
Role: Strait Jacket Yuppie
Anita Dangler
Role: Bag Lady
Mark Bringelson
Role: Drooler
Johnny Paganelli
Role: Pizza Boy
Diane Robin
Role: Receptionist
Benjamin Redman
Role: Motorcyclist
Lisa Blades
Role: Parry's Wife
Christian Clemenson
Role: Edwin
Carlos Carrasco
Role: Doctor
John de Lancie
Role: TV Executive
Caroline Cromelin
Role: Radio Show Call-In (voice)
Kathleen Bridget Kelly
Role: Radio Show Call-In (voice)
Pat Fraley
Role: Radio Show Call-In (voice)
Mel Bourne
Role: Langdon Carmichael (uncredited)
Kristen Connors
Role: Ballroom Dancer (uncredited)
Jack Mulcahy
Role: Passerby (uncredited)
Tom Waits
Role: Disabled Vet (uncredited)
Craig 'Radio Man' Castaldo
Role: Bum (uncredited)