Credits for John Paul Leon on Spider-Man related comics and items from our database.
| Mar 1999 | Earth X #0 (Pencils) |
| Apr 1999 | Earth X #1 (Pencils) |
| Jun 1999 | Earth X #3 (Pencils) |
| Sep 1999 | Earth X #6 (Pencils) |
| Nov 1999 | Earth X #8 (Pencils, Inker) |
| Dec 1999 | Earth X #9 (Pencils, Inker) |
| Jan 2000 | Earth X #10 (Pencils, Inker) |
| Mar 2000 | Earth X #11 (Pencils, Inker) |
| Jun 2000 | Earth X #X (Pencils) |
| Feb 1999 | Earth X: Sketchbook (Artist) |