Laura Trotter
Dr. Anna Miller
Maria Rosaria Omaggio
Sheila Holmes
Francisco Rabal
Major Warren Holmes
Eduardo Fajardo
Dr. Kramer
Stefania D'Amario
Jessica Murchison
Sara Franchetti
Liz the Maid
Manuel Zarzo
Colonel Donahue (as Manolo Zarzo)
Tom Felleghy
Lieutenant Reedman (as Tom Felleghi)
Achille Belletti
TV Station Technician
Mel Ferrer
General Murchison
Agustín Bescos
Man in Elevator (uncredited)
Edy Biagetti
Military Officer (uncredited)
Frank Clement
Aide (uncredited)
Ottaviano Dell'Acqua
Zombie Outside TV Station (uncredited)
Roberto Dell'Acqua
Zombie (uncredited)
Alejandro de Enciso
Captain (uncredited)
Umberto Lenzi
Reporter (uncredited)
Fiamma Maglione
Mr. Desmond's Secretary (uncredited)
Carmen Martínez Sierra
Woman in Elevator (uncredited)
Antonio Mayans
Cameraman (uncredited)
Benito Pacifico
Zombie (uncredited)
Renzo Pevarello
Victim at Murchison House (uncredited)
Silvana Scandariato
Woman at TV Station (uncredited)
Maurizio Streccioni
Television Station Worker (uncredited)
Sergio Testori
Soldier (uncredited)
José Yepes
Controller (uncredited)
Rinaldo Zamperla
Zombie (uncredited)
Anna Maria Zamperla
Marta Jones (uncredited)
Román Ariznavarreta
Zombie (uncredited)