Hugo Stiglitz
Dean Miller
Laura Trotter
Dr. Anna Miller
Francisco Rabal
Major Warren Holmes
Mel Ferrer
General Murchison
Maria Rosaria Omaggio
Sheila Holmes
Eduardo Fajardo
Dr. Kramer
Stefania D'Amario
Jessica Murchison
Manuel Zarzo
Colonel Donahue
Tom Felleghy
General Reedman
Achille Belletti
TV Station Technician
Ottaviano Dell'Acqua
Zombie (uncredited)
Roberto Dell'Acqua
Zombie (uncredited)
Umberto Lenzi
News Reporter (uncredited)
Fiamma Maglione
Secretary (uncredited)
Antonio Mayans
Cameraman (uncredited)
Edmund Purdom
Man in Elevator (voice) (uncredited)
Maurizio Streccioni
TV Technician (uncredited)
Benito Pacifico
TV Station Zombie (uncredited)
Frank Clement
Aide (uncredited)
Carmen Martínez Sierra
Woman in Elevator (uncredited)
José Yepes
Controller (uncredited)
Sergio Testori
Strangled Soldier (uncredited)
Alejandro de Enciso
Deranged Captain (uncredited)
Agustín Bescós
Man in Elevator (uncredited)
Rinaldo Zamperla
Zombie (uncredited)