| Character Name | # app. | w=writer a=artist d=director |
| Acrobat (Joe Clanton) | 1 | a, w |
| Asgardians | 644 | w |
| Balder | 375 | w |
| John Blandings | 1 | w |
| Sylvia Blandings | 1 | w |
| Bob | 1 | w |
| John Carpenter | 1 | w |
| John Carter | 1 | w |
| Wong-Chu | 10 | w |
| Bill Cooper | 1 | w |
| Dr. Svenson imposter | 1 | w |
| Dummy | 1 | w |
| Egghead (Elihas Starr) | 48 | w |
| Alice Evans | 1 | w |
| Leslie Evans | 1 | w |
| The Executioner (Santiago Rivera) | 3 | w |
| Jane Foster | 341 | w |
| giant robots | 1 | w |
| Giant-Man (Hank Pym) | 1,543 | w |
| Gorgilla | 3 | w |
| Gorr | 4 | w |
| Dr. Roger Graham | 3 | w |
| Groot | 58 | w |
| Gruber | 1 | w |
| Edward Harrison | 5 | w |
| Heimdall | 330 | w |
| Hijacker (Howard Mitchell) | 4 | w |
| Iron Man (Tony Stark) | 5,673 | w |
| Mrs. Jones | 1 | w |
| Jordan | 1 | w |
| Kallusians | 2 | w |
| Korg | 23 | w |
| Luther Krumhausen | 1 | w |
| Kuhn | 1 | w |
| Kulla | 1 | w |
| Madame X (Nina Tsiolkovsky) | 4 | w |
| Margus | 7 | w |
| The Mechano-Monster | 1 | w |
| The Midnight Monster (Victor Avery) | 1 | w |
| Monstro | 1 | w |
| NATO | 18 | w |
| Odin | 307 | w |
| Ogor | 1 | w |
| Mary Parker | 10 | a |
| Richard Parker | 8 | a |
| Protector (Gerald Marsh) | 1 | w |
| Quists | 7 | a, w |
| Paul Ramsey | 1 | w |
| Sandu | 1 | w |
| Scarlet Beetle | 6 | w |
| Sneepers | 5 | a, w |
| Stone Men from Saturn (Kronan) | 32 | w |
| Dr. Hjarmal Knute Svenson | 1 | w |
| Thor (Donald Blake) | 4,362 | w |
| Time-Master (Elias Weems) | 1 | w |
| Titan | 2 | w |
| The Tomorrow Man (Artur Zarrko) | 45 | w |
| Torr | 1 | w |
| Tyr | 106 | w |
| unnamed cat | 1 | w |
| unnamed extremely kind alien race | 1 | a, w |
| Valeria | 20 | a, w |
| The Valkyrior | 29 | w |
| The Voice (Jason Lorne Cragg) | 10 | w |
| J.B. Winthrop | 1 | w |
| Wobbow | 2 | a, w |
| Xartans | 5 | w |
| Professor Ho Yinsen | 15 | w |
| The Yirbek | 2 | w |
| Yrds | 2 | a, w |
| Darius Zamora | 1 | w |
| Zaniac (Thug Thatcher) | 5 | w |
| Lord Zano | 2 | w |