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)

Pierangelo Civera

Bob

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)