| Issue | #20 |
| Published | August 1988 |
| Cover Price | 0.75 USD; 1.00 CAD |
| Pages | 36 |
| Editing | Michael Carlin; Renee Witterstaetter (assistant); Paul Kupperberg (kibitzing) |
| Characters | Robotman [Cliff Steele]; Superman [Clark Kent; Kal-El]; Metallo |
| Genre | Superhero |
| Pencils | John Byrne (signed) |
| Inks | John Byrne (signed) |
| Characters | Superman [Clark Kent; Kal-El]; Supergirl [Matrix]; Lana Lang; Jonathan Kent; Martha Kent; Captain Maggie Sawyer; Lois Lane; Cat Grant; Perry White; Alice [Allie]; Jimmy Olsen; Doom Patrol [Celsius [Arani Caulder]; Scott Fischer; Karma [Wayne Hawkins]; Lodestone [Rhea Jones]; Negative Woman [Val Vostok]; Robotman [Cliff Steele]; Tempest [Joshua Clay]]; Janet Jones (dies); VILLAIN: Metallo |
| Synopsis | Lana introduces Ma and Pa Kent to Supergirl. Superman goes to investigate a disturbance in Kansas City, and runs into the Doom Patrol, who have just been soundly defeated by Metallo. |
| Genre | Superhero |
| Script | John Byrne |
| Pencils | John Byrne |
| Inks | Karl Kesel |
| Colors | Petra Scotese |
| Letters | John Costanza |
| Notes | Pages 20-22 of DOOM PATROL (DC, 1987 series) #10 take place between panels 4 and 5 of page 7. |
| Script | Renee Witterstaetter |
| Letters | typeset |
| Notes | Letters from readers - Tim Hasci, C.P. Cagle, Peter Perez, David Metz, Andrew Kaplan, Patrick O'Connor, T.M. Maple and Jacob Gilbert - and responses from Renee Witterstaetter. |