Ultraman - Season 1 - Eps 31: Who Has Come?
When an agent visiting Japan from the Science Patrol's South American headquarters begins behaving suspiciously, the Science Patrol discovers that he has been infected by an Amazonian blood-sucking creature intent on spreading its evil tendrils throughout the entire world.
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