After Koji Kabuto and Sayaka Yumi leave to the USA, it's up to the rash orphan Tetsuya Tsurugi to pilot the next Mazinger robot: the Great Mazinger. Under the direction of Dr. Kenzo Kabuto and helped by his adoptive sister Jun Honou, Tetsuya battles the Miccene Empire.

• Keiichi Noda
• Hidekatsu Shibata
• Kenichi Ogata
• Osamu Kato
• Yumi Nakatani
• Joji Yanami