|Scientific Defense Guard|
|Designations:||To protect humanity from any alien threats and giant monsters|
|First appearance:||The☆Ultraman Episode 1|
|Latest appearance:||The☆Ultraman Episode 50|
Scientific Defense Guard (科学警備隊Kagaku Keibitai?) is a branch of the Earth Defense Force in the U40 Timeline in The☆Ultraman.
- Tetsuo Akiyama/ Captain Adams (アキヤマ 徹男Akiyama Tetsuo?): The first captain of the Far East Zone. He is transferred to the America Zone in Episode 26.
- Daisuke Gondo (ゴンドウ 大助Gondō Daisuke?): The second captain of the Far East Zone, who takes over Akiyama's duties from Episode 27 and onward.
- Kei Marume/ Lieutenant Marconi (マルメ 敬Marume Kei?): A strongman and an expert marksman.
- Hiroaki Tobe/ Lieutenant Glenn (トベ 博明Tobe Hiroaki?): A weapons developer.
- Mutsumi Hoshikawa/ Lieutenant Anne Johnson (星川 ムツミHoshikawa Mutsumi?): A female member.
- Choichiro Hikari/ Lieutenant Harris (ヒカリ 超一郎Hikari Chōichirō?): He encounters Joeneus on his way from a space station to the earth, and merges with Joeneus.
- Pigu: An assistant robot that resembles the creature Pigmon
- Monkey: A monkey like robot normally seen with Pig
Vehicles and Armaments
- The SDG is the first animated Attack Team.
- They are also the first to use robots.
|Showa Attack Teams||SSSP | UG | MAT | TAC | ZAT | MAC | UGM | Scientific Defense Guard|
|Heisei Attack Teams||UMA | WINR | HEART | MYDO | TPC (GUTS, Super GUTS, Black Buster Corps, Neo Super GUTS) | XIG | EYES | TLT | DASH | GUYS | ZAP Spacy | Team U | UPG | Xio | VLT | AIB|