| Issue | #11 |
| Published | November 1987 |
| Cover Price | 0.75 USD; 1.00 CAD |
| Pages | 36 |
| Editing | Michael Carlin |
| Characters | Superman [Clark Kent; Kal-El]; Lois Lane; Mr. Mxyzptlk |
| Genre | Superhero |
| Pencils | John Byrne (signed) |
| Inks | John Byrne (signed) |
| Characters | Superman [Clark Kent; Kal-El]; Lois Lane; Jimmy Olsen; Cat Grant; Mr. Harrigan; VILLAIN: Mr. Mxyzptlk [as Ben DeRoy; aka Beyonder] (first post-Crisis appearance) |
| Synopsis | Mr. Mxyzptlk, the imp from the 5th Dimension, introduces himself to Superman. |
| Genre | Superhero |
| Script | John Byrne |
| Pencils | John Byrne |
| Inks | Karl Kesel |
| Colors | Tom Ziuko |
| Letters | John Costanza |
| Notes | Ben DeRoy is an homage/anagram to Marvel's The Beyonder, including a perm and white suit. |
| Reprinted | in Lois and Clark, The New Adventures of Superman (DC, 1994 series) #[nn] |
| Script | Mike Carlin |
| Letters | typeset |
| Notes | Letters from readers - Tim Hayes, Michael A. Medlock, Eric Sklar, Richards Rivera, Mark Armstrong, Robert John Williams, Mark Haden Frazer and Charles Kelly - and responses from Mike Carlin. |