• 
  Mel Smith

  regizor

• 
  George Lucas

  scenarist
• 
  Willard Huyck

  scenarist

• 
  Christopher Lloyd

  Zoltan
• 
  Dylan Baker

  Jasper
• 
  Brian Benben

  Roger Henderson
• 
  Mary Stuart Masterson

  Penny Henderson
• 
  Ned Beatty

  Walt Whalen

• 
  Larry Miller

  Herman Katzenback
• 
  Jeffrey Tambor

  Walt Whalen, Jr.
• 
  Peter MacNicol

  Son Writer
• 
  Scott Michael Campbell

  Billy
• 
  Harvey Korman

  Jules Cogley
• 
  Marguerite MacIntyre

  Bubble Bath Announcer
• 
  Michael McKean

  Rick Rochester

• 
  Stephen Tobolowsky

  Max Applewhite
• 
  Michael Lerner

  Lieutenant Cross
• 
  Mark Jeffrey Miller

  Cop #8
• 
  Anne De Salvo

  Female Writer
• 
  Gary Anthony Williams

  Dr. Ashton-Reeves
• 
  Jeffrey Pillars

  Nerdy Stagehand
• 
  Keith Flippen

  Space Cadet Jimmy
• 
  Randell Haynes

  Difficult Actor/Interrogator
• 
  Ellen Albertini Dow

  Organist
• 
  J. Don Ferguson

  Johnny Ace, Hard Boiled Dick
• 
  Bo Hopkins

  Billly's Father
• 
  Michael Harding

  Cop #5
• 
  Corbin Bernsen

  Dexter Morris
• 
  Tammy Lauren

  In the Mood Bandleader
• 
  Michele Seidman

  Radio Actress 5-B
• 
  Nina Repeta

  Member, The Miller Sisters
• 
  Wilbur Fitzgerald

  'Tortured' Actor
• 
  Robert Walden

  Tommy
• 
  Bobcat Goldthwait

  Wild Writer
• 
  Brion James

  Bernie King
• 
  Robert Klein

  Father Writer
• 
  Candy Clark

  Billy's Mother
• 
  Michael P. Moran

  Cop #9
• 
  Richard K. Olsen

  Pa, Lt. Cross Actor
• 
  Paul 'Mousie' Garner

  Double bass performer
• 
  Lou Criscuolo

  Cop #4
• 
  Gary Kroeger

  Gork, Son of Fire
• 
  Joey Lawrence

  Frankie Marshall
• 
  George Burns

  Milt Lackey
• 
  Mark Joy

  Jack Granite, Man's Man
• 
  Jennifer Dundas

  Deirdre
• 
  Robert C. Treveiler

  Cop #13
• 
  Rosemary Clooney

  Anna
• 
  Anita Morris

  Claudette Katsenback