| Colecciones Españolas | Colecciones USA | Personajes | Autores | Comics Españoles | Comics USA | Sagas |
| Apariciones de Electro (The Twelve): 25 |
| Título Colección | Número | Variante | Mes | Año |
|---|---|---|---|---|
| Marvel Mystery Comics | 4 | FEB | 1940 | |
| Marvel Mystery Comics | 5 | MAR | 1940 | |
| Marvel Mystery Comics | 6 | ABR | 1940 | |
| Marvel Mystery Comics | 7 | MAY | 1940 | |
| Marvel Mystery Comics | 8 | JUN | 1940 | |
| Marvel Mystery Comics | 9 | JUL | 1940 | |
| Marvel Mystery Comics | 10 | AGO | 1940 | |
| Marvel Mystery Comics | 11 | SEP | 1940 | |
| Marvel Mystery Comics | 12 | OCT | 1940 | |
| Marvel Mystery Comics | 13 | NOV | 1940 | |
| Marvel Mystery Comics | 14 | DIC | 1940 | |
| The Twelve | 1 | MAR | 2008 | |
| The Twelve | 2 | ABR | 2008 | |
| The Twelve | 3 | MAY | 2008 | |
| The Twelve | 4 | JUN | 2008 | |
| The Twelve | 5 | JUL | 2008 | |
| The Twelve | 6 | AGO | 2008 | |
| The Twelve | 7 | OCT | 2008 | |
| The Twelve | 8 | DIC | 2008 | |
| Marvel Mystery Comics 70th Anniversary Special | 1 | JUL | 2009 |
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