• 
  Umberto Lenzi

  regizor

• 
  Antonio Cesare Corti

  scenarist
• 
  Luis Maria Delgado

  scenarist

• 
  Hugo Stiglitz

  Dean Miller
• 
  Laura Trotter

  Dr. Anna Miller
• 
  Maria Rosaria Omaggio

  Sheila Holmes
• 
  Umberto Lenzi

  News Reporter
• 
  Fiamma Maglione

  Mr. Desmond's Secretary

• 
  Francisco Rabal

  Major Warren Holmes
• 
  Benito Pacifico

  Zombie at TV Station
• 
  Antonio Mayans

  Cameraman
• 
  Ottaviano Dell'Acqua

  Zombie outside TV station
• 
  Mel Ferrer

  General Murchison
• 
  Edmund Purdom

  Man in Elevator
• 
  Eduardo Fajardo

  Dr. Kramer

• 
  Pat Starke

  Dr. Anna Miller
• 
  Susan Spafford

  Liz
• 
  Sonia Viviani

  Cindy
• 
  Manuel Zarzo

  Colonel Donahue
• 
  Sara Franchetti

  Liz
• 
  Achille Belletti

  TV Station Technician
• 
  Ugo Bologna

  Mr. Desmond
• 
  Pierangelo Civera

  Bob
• 
  Stefania D'Amario

  Jessica Murchison
• 
  Tom Felleghy

  Lieutenant Reedman (as Tom Felleghi)