Main Cast:
* Takashi Tsukuda as Gōki (Red Five) - The team's leader, known for his strength and determination.
* Kenji Ohba as Akira (Blue Five) - The brains of the operation, a strategist with a calm demeanor.
* Naoya Kaneko as Hitoshi (Black Five) - The hotheaded fighter of the group, known for his impulsiveness.
* Noriko Tsukuda as Megumi (Yellow Five) - The kind and caring member, skilled in medicine.
* Mami Sato as Kaori (Pink Five) - The athletic and agile member of the team.
Supporting Cast:
* Junpei Takiguchi as Kazuo Tsukuda (Father of Gōki and Megumi)
* Yoshiko Tanaka as Kyoko Tsukuda (Mother of Gōki and Megumi)
* Kōtarō Satomi as Dr. Shigeru Furukawa
* Hideyo Amamoto as Misa Furukawa
* Junpei Morita as Kenji Furukawa
* Noriko Nagashima as Yuko Furukawa
* Toshihide Tsuchiya as General Hayase
Villain Cast:
* Keiichi Noda as Zuborg - The leader of the Zuborg Empire.
* Yūki Morioka as Zuborg Commander
* Jun Murakami as Zuborg General
* Aoi Takeshi as Zuborg Soldier
This is just a partial list, as there were many other actors and actresses who played various roles in the series.