Takumi Saito
as Shinji Kaminaga/Ultraman
Issey Takahashi
as Ultraman (voice)
Masami Nagasawa
as Hiroko Asami
Daiki Arioka
as Akihisa Taki
Hidetoshi Nishijima
as Kimio Tamura
Akari Hayami
as Yumi Funaberi
Kyusaku Shimada
as Japanese Prime Minister Taishi Okuma
Tetsushi Tanaka
as Tatsuhiko Munakata