Ken Utsui as Starman

Junko Ikeuchi as Toshiko / Sister

Shoji Nakayama as Detective Okamoto

Minoru Takada as Father

Sachihiro Ohsawa as

Minako Yamada as

Hiroshi Hayashi as Chief of Metropolitan Police

Utako Mitsuya as

Chisako Hara as

Reiko Seto as Okamoto's Sister

Akira Tamura as

Tomohiko Ôtani as Vice-Head of Atom AB

Fumiko Miyata as

Jōji Ōhara as Member of Atom AB

Kami Ashita as

Terumi Hoshi as

Shinsuke Mikimoto as Member of Atom AB