• 
  Orson Welles

  Jonathan Wilk
• 
  Dean Stockwell

  Judd Steiner
• 
  Richard Anderson

  Max Steiner
• 
  Robert F. Simon

  Lt. Johnson
• 
  Wilton Graff

  Mr. Steiner
• 
  Edmund Cobb

  Poliţist
• 
  Robert Burton

  Mr. Straus
• 
  Diane Varsi

  Ruth Evans

• 
  Peter Brocco

  Albert, Chauffeur
• 
  Wendell Holmes

  Jonas Kessler
• 
  Ina Balin

  Mike's girlfriend
• 
  Alan Carney

  Globe Newspaper Editior
• 
  Jack Lomas

  Medical Examiner
• 
  Ed Binns

  Tom Daly
• 
  E.G. Marshall

  Dist. Atty. Harold Horn

• 
  Gavin MacLeod

  Padua
• 
  Martin Milner

  Sid Brooks
• 
  Bradford Dillman

  Arthur Straus
• 
  Louise Lorimer

  Mrs. Straus aka 'Mumsy'