| Release: | Jun 1957 |
| Cover: | Jun 1957 |
Superman and Batman's Greatest Foes!
| Release: | Jun 1957 |
| Cover: | Jun 1957 |
Luthor and Joker claim to have gone straight, and create what appears to be a legitimate business create mechanical men to perform dangerous jobs in place of humans. What are they really up to?
| Writer | George Papp, Craig Hamilton, Henry Boltinoff |
| Artist | George Papp, Henry Boltinoff |
| Cover Penciller | Curt Swan |
| Cover Inker | Stan Kaye |
| Penciller | Dick Sprang |
| Inker | Stan Kaye |
| Batman | Bruce Wayne |
| Superman | Kal-El / Clark Kent |
| Lois Lane | |
| Joker | |
| Green Arrow | Oliver Queen |
| Lex Luthor | |
| Robin | Dick Grayson |
| Perry White | |
| Speedy | Roy Harper |
| Tomahawk | Thomas Hawkins |
| Age | Silver Age |
|---|---|
| Format | Comic |
| Series Group | Superman / Batman |
| Genre | Action | Adventure | Super-Heroes |
| Country | USA |
| Language | English |