Denichi (Den Hajime) can transform into a 2,000-meter-tall giant, Den-Ace, fights against the suddenly appearing monster, Drydon!!!
| Actor | Role |
|---|---|
 Minoru KawasakiDenichi | Denichi |
| RReijirô KatôDenjiro | Denjiro |
| MMami HachiyaNot listed | Not listed |
 Shoko NakagawaNot listed | Not listed |
 Sayoko HagiwaraNot listed | Not listed |