Hugo Stiglitz

Dean Miller

Laura Trotter

Dr. Anna Miller

Maria Rosaria Omaggio

Sheila Holmes

Francisco Rabal

Major Warren Holmes

Sonia Viviani

Cindy

Eduardo Fajardo

Dr. Kramer

Stefania D'Amario

Jessica Murchison

Ugo Bologna

Mr. Desmond

Sara Franchetti

Liz the Maid

Manuel Zarzo

Colonel Donahue (as Manolo Zarzo)

Tom Felleghy

Lieutenant Reedman (as Tom Felleghi)

Mel Ferrer

General Murchison

Edy Biagetti

Military Officer (uncredited)

Ottaviano Dell'Acqua

Zombie Outside TV Station (uncredited)

Roberto Dell'Acqua

Zombie (uncredited)

Umberto Lenzi

Reporter (uncredited)

Carmen Martínez Sierra

Woman in Elevator (uncredited)

Antonio Mayans

Cameraman (uncredited)

Benito Pacifico

Zombie (uncredited)

Renzo Pevarello

Victim at Murchison House (uncredited)

Maurizio Streccioni

Television Station Worker (uncredited)

Sergio Testori

Soldier (uncredited)

Rinaldo Zamperla

Zombie (uncredited)

Anna Maria Zamperla

Marta Jones (uncredited)

Román Ariznavarreta

Zombie (uncredited)

Giuseppe Monteverdi

Jack Jones (uncredited)