• 
  Roger Young

  regizor

• 
  Ron Howard

  Ned De Vries
• 
  Dwight Schultz

  Schlatter
• 
  Richard Dysart

  Dr. Morton Freeman
• 
  Robert Behling

  Art
• 
  G.W. Bailey

  Jim Lazlo
• 
  Barry Corbin

  Dr. Agajanian
• 
  Tarah Nutter

  Kate De Vries

• 
  J.E. Freeman
• 
  Christopher Kriesa
• 
  Art Carney

  Walter Peary
• 
  Ken Hixon

  Williams
• 
  Charlotte Stewart

  Mrs. Lazlo
• 
  Terry David Mulligan
• 
  Matthew Locricchio

• 
  Joe Miksak

  Al
• 
  Jim Haynie

  Doc Vandecamp

• 
  Fred Karlin

  departament sunet
• 
  Thomas Fries

  montaj
• 
  Tony Ganz

  producător
• 
  Charles W. Fries

  producător
• 
  Craig Huston

  second unit director or assist
• 
  Richard Friedenberg

  scriitor