Aliens try to take over Earth after their own planet is destroyed. Kenji Sahara. Etsuko: Yumi Shirikawa. Hiroko: Momoko Kochi. Ryoichi: Akihiko Hirata. Adachi: Takashi Shimura. Morita: Susumu Fujita. Also known as "Earth Defense Force" and "Chikyu Boeigun." Inoshiro Honda directed.