| Issue | #23 |
| Published | February-March 1966 |
| Cover Price | 0.12 |
| Pages | 36 |
| Editing | Julius Schwartz |
| Characters | The Atom [Ray Palmer] |
| Genre | superhero |
| Pencils | Gil Kane |
| Inks | Murphy Anderson |
| Characters | The Atom [Ray Palmer]; Dr. Ewald Barnes; Bill Ames; Oban Thokol; Krommer Pav (villain); Davarians; Enrichetta Negrini (flashback) |
| Genre | superhero |
| Script | Gardner Fox |
| Pencils | Gil Kane |
| Inks | Sid Greene |
| Notes | Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. |
| Characters | The Atom [Ray Palmer]; Jean Loring; Billy Knolles (villain) |
| Genre | superhero |
| Script | Gardner Fox |
| Pencils | Gil Kane |
| Inks | Sid Greene |
| Notes | Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. |