"Clark Kent's Masquerade As Superman!" #331
| Series | Action Comics |
| Number | Vol. 1 #331 |
| Publisher | DC Comics, National Periodical Publications, Inc. |
| Date | 1965-12 |
| Type | Comic Book, Softcover |
| Language | English |
| Cover Artist | Curt Swan |
| Editor | Mort Weisinger |
| Inker | Al Plastino, Jim Mooney |
| Penciler | Al Plastino, Jim Mooney |
| Writer | Otto Binder, Leo Dorfman |
| Genre | Superhero |
| Published in | Sparta, Illinois |
| Pages | 32 |
| Characters | Superman (Kal-El) (Earth 1), Supergirl (Kara Zor-El) (Earth 1), Supporting Characters:, Lois Lane (Earth 1) |
| Story Location | Metropolis, Earth-One: Arctic Circle; Fortress of Solitude, Another Universe: Purple Planet |
| Links | https://dc.fandom.com/wiki/Action_Comics_Vol_1_331 |
| Notes | 2nd Story: Supergirl: "Operation Satan" |
Added by mlopinto