| Issue | #55 |
| Published | December 1966 |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Pat Masulli (Executive Editor); Dick Giordano (Managing Editor) |
| Characters | Thunderbolt [Peter Cannon] |
| Genre | superhero |
| Pencils | Pete Morisi |
| Inks | Pete Morisi |
| Characters | Thunderbolt [Peter Cannon] |
| Genre | superhero |
| Script | Pete Morisi [as PAM] |
| Pencils | Pete Morisi [as PAM] |
| Inks | Pete Morisi [as PAM] |
| Characters | Sentinels [Helio; Brute; Mentalia] |
| Genre | superhero |
| Script | Gary Friedrich (signed) |
| Pencils | Sam Grainger (signed) |
| Inks | Sam Grainger (signed) |
| Letters | typeset |
| Notes | Letters of comment from readers Gary Brown; Terry Turner; Delwyn Doyle; Manfred Sierke. |