| Issue | #4 |
| Published | April-May 1969 |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Julius Schwartz |
| Notes | Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (added by Gregory Fischer, June 2009). |
| Characters | Captain Action |
| Genre | superhero |
| Pencils | Gil Kane (signed) |
| Inks | Gil Kane (signed) |
| Notes | Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (added by Gregory Fischer, June 2009). |
| Characters | Dr. Evil; Alpha Centurans |
| Genre | superhero |
| Script | Gil Kane |
| Pencils | Gil Kane |
| Inks | Gil Kane |
| Notes | Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. |