• 
  Luis Aceves Castañeda

  Scientist-Cameo at Society Meeting
• 
  Ramón Gay

  Dr. Edmund Redding
• 
  Peter Mills (I)
• 
  George Mitchell

  Dr. Frederick Munson
• 
  Rosa Arenas

  Ann Taylor
• 
  Emma Roldán
• 
  Crox Alvarado

  Redding's Younger Assistant

• 
  Enrique Wallace

  imagine

• 
  Jorge Bustos

  montaj
• 
  Guillermo Calderón

  producător
• 
  Guillermo Calderón

  scriitor
• 
  Alfredo Salazar

  scriitor