John Saxon

Norman Hopper

Elizabeth Turner

Jane Hopper

Giovanni Lombardo Radice

Charlie Bukowski

Cinzia De Carolis

Mary

Tony King

Tom Thompson

May Heatherly

Helen

Ramiro Oliveros

Dr. Phil Mendez

Venantino Venantini

Lieutenant Hill

Renzo Pevarello

Hospital Assistant

Walter Patriarca

Mr. Philipps, Jane Hopper's guest at TV Station (uncredited)

Laura Dean

Brunette Jogger

Lonnie R. Smith Jr.

Biker

Don Ruffin

Biker Carlos

Edoardo Margheriti

Police Officer (uncredited)

Luca Venantini

Bobby (uncredited)

Goffredo Unger

Mall Guard (uncredited)

Renzo Marignano

Dr. Morris (uncredited)

Taso N. Stavrakis

Citizen (uncredited)

Fernanda Dell'Acqua

Burning Woman (uncredited)

Sergio Testori

Policeman in Sewers (uncredited)

Nazzareno Zamperla

U.S. Army Soldier (uncredited)