| Issue | #314 |
| Published | November 1963 |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Mort Weisinger |
| Notes | Reader suggestions for new Legionnaires include Gas Girl |
| Characters | Legion of Super-Heroes [Superboy; Mon-El; Saturn Girl]; Alaktor |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | George Klein |
| Letters | Ira Schnapp |
| Reprinted | in Legion of Super-Heroes Archives (DC, 1991 series) #2 |
| Characters | Legion of Super-Heroes [Saturn Girl; Lightning Lad; Bouncing Boy; Brainiac 5; Sun Boy; Mon-El; Superboy; Ultra Boy]; Alaktor; Ronn Kar; Nero; John Dillinger; Adolf Hitler |
| Synopsis | Rejected Legion applicant Alaktor steals a Time Bubble and recruits the help of Nero, Dillinger, and Hitler. |
| Genre | superhero |
| Script | Edmond Hamilton |
| Pencils | John Forte |
| Inks | John Forte |
| Letters | Milton Snapinn |
| Editing | Mort Weisinger |
| Notes | First app of Ronn Kar. |
| Reprinted | in Adventure Comics (DC, 1938 series) #501; in Legion of Super-Heroes Archives, The (DC, 1991 series) #2 |
| Characters | Legion of Super-Heroes [Saturn Girl; Lightning Lad; Bouncing Boy; Sun Boy; Superboy; Ultra-Boy; Mon-El; Invisible Kid; Chameleon Boy; Shrinking Violet]; Nero; John Dillinger; Adolf Hitler; Alaktor |
| Synopsis | Alaktor switches Hitler's, Nero's, and Dillinger's minds with Superboy's, Mon-El's, and Ultra-Boy's. Saturn Girl tricks them into defeating each other, and the Legion forces Alaktor to undo the process. |
| Genre | superhero |
| Script | Edmond Hamilton |
| Pencils | John Forte |
| Inks | John Forte |
| Letters | Milton Snapinn |
| Editing | Mort Weisinger |
| Reprinted | in Adventure Comics (DC, 1938 series) #501; in Legion of Super-Heroes Archives, The (DC, 1991 series) #2 |
| Characters | Superboy |
| Synopsis | Fred Carter thinks his son Amos is Superboy |
| Genre | superhero |
| Script | ?; Mort Weisinger |
| Pencils | George Papp |
| Inks | George Papp |
| Letters | Joe Letterese |
| Editing | Mort Weisinger |