I diafanoidi vengono da Marte

Tony Russel

Cmdr. Mike Halstead

Lisa Gastoni

Lt. Connie Gomez

Franco Nero

Lt. Jake Jacowitx

Carlo Giustini

Capt. Jaques Dubois

Enzo Fiermonte

Ken

Linda Sini

Lt. Fina Marlie

Nando Angelini

Capt. Tice

Corinne Fontaine

Gamma 1 Hostess

Umberto Raho

Gen. Paul Maitland

Goffredo Unger

Duvall

Michel Lemoine

Capt. Jacques Dubois