Ultraman - Season 1 - Eps 18: The Brother from Another Planet
A mysterious radioactive fog settles over Tokyo. An even more mysterious alien arrives to clean it up. But can this good samaritan really be trusted? And what is his connection to the evil doppelganger of Ultraman that's terrorizing the city?
About Ultraman

Title: Ultraman
First Air Date: 1966-07-17
Last Air Date: 1967-04-09
Status: Ended
Rating: 8.3/10 (from 42 votes)
Language: JA
Seasons: 2
Total Episodes: 39
Network: TBS
Genres: Action & Adventure, Sci-Fi & Fantasy, Mystery
Production Companies: Tsuburaya Productions, Tokyo Laboratory
Synopsis
Hayata is a member of the Science Patrol, an organization tasked with investigating bizarre anomalies. He is mortally wounded when accidently encountering an alien being from Land of Light, who grants Hayata new life as the two are merged into one. Now, whenever a threat arises that is too great for the Science Patrol to handle, Hayata activates the beta capsule and becomes the hero known as Ultraman.
Cast

Susumu Kurobe
Shin Hayata / Ultraman

Akiji Kobayashi
Captain 'Cap' Toshio Muramatsu

Sandayuu Dokumamushi
Daisuke Arashi

Hiroko Sakurai
Akiko Fuji

Masaya Nihei
Mitsuhiro Ide

Akihide Tsuzawa
Isamu Hoshino

Akihiko Hirata
Dr. Iwamoto

Koji Ishizaka
Narrator

Hikaru Urano
Narrator

Bin Furuya
Ultraman