Martians land on Earth, prepared for conquest. Atom-Man is Earth's only defense.
| Actor | Role |
|---|---|
| DDick AndersenNot listed | Not listed |
| LLarry M. ByrdNot listed | Not listed |
| BBobby DonahoNot listed | Not listed |
 Donald F. GlutAtom-Man | Atom-Man |
| MMelody RaberMarzanna, Queen of Mars | Marzanna, Queen of Mars |
| MMick RogersNot listed | Not listed |