| Issue | #603 |
| Published | June 7, 1988 |
| Cover Price | 1.50 USD; 2.00 CAD |
| Pages | 52 |
| Editing | Mike Gold (series); Brian Augustyn (associate) |
| Notes | No cover date. Cover date backed off later issues. Contains 6 stories. The letters column is letters about the Wild Dog mini-series of 1987. Substantial indexing information on this issue provided by Donald Dale Milne. |
| Characters | Blackhawk [Janos Prohaska] |
| Genre | Adventure; War |
| Pencils | Kyle Baker (signed) |
| Inks | Kyle Baker (signed) |
| Editing | Robert Greenberger (cover) |
| Characters | Green Lantern [Hal Jordan]; Star Sapphire [Carol Ferris] |
| Synopsis | Hal Jordan and Star Sapphire battle. |
| Genre | Superhero |
| Script | James Owsley [Christopher Priest] |
| Pencils | Gil Kane |
| Inks | Gil Kane |
| Colors | Anthony Tollin |
| Letters | Albert DeGuzman |
| Editing | Denny O'Neil (story) |
| Notes | Continued from Action Comics Weekly 602, continued in Action Comics Weekly 604. Spelling "Zamorans" is used in this story. |
| Characters | Mockingbird [Carlo DiRienzi]; second Secret Six [Tony Mantegna; Vic Sommers; Mitch Hoberman; Luke McKendrick; Ladonna Jameal; Dr. Maria Verdugo]; Melanie Sommers |
| Synopsis | The new Secret Six receives their orders and begins action, while the death of the old Secret Six is discovered. |
| Genre | Superhero |
| Script | Martin Pasko |
| Pencils | Dan Spiegle |
| Inks | Dan Spiegle |
| Colors | Carl Gafford |
| Letters | Carrie Spiegle |
| Editing | Dick Giordano (story) |
| Notes | Continued from Action Comics Weekly 602, continued in Action Comics Weekly 604. |
| Characters | Deadman [Boston Brand]; Major Grace Kasaba; Professor Fulgencio Flores; Talaoc; Mr. Combs; Mr. Currier |
| Synopsis | Deadman questions Talaoc while the C.I.A. discovers weapons in the pyramid Talaoc was entombed in. |
| Genre | Occult |
| Script | Mike Baron |
| Pencils | Dan Jurgens |
| Inks | Tony DeZuniga |
| Colors | Liz Berube |
| Letters | Steve Haynie |
| Editing | Barbara Randall [Barbara Kesel] (story) |
| Notes | Continued from Action Comics Weekly 602, continued in Action Comics Weekly 604. |
| Characters | Superman [Kal-El aka. Clark Kent]; Charles Culpepper |
| Synopsis | Superman chases Bob Galt's would-be assassins: one kills another and 2 are captured. |
| Genre | Superhero |
| Script | Roger Stern |
| Pencils | Curt Swan |
| Inks | John Beatty |
| Colors | Petra Scotese |
| Letters | Bill Oakley |
| Editing | Mike Carlin (story) |
| Notes | Continued from Action Comics Weekly 602, continued in Action Comics Weekly 604. |
| Characters | Jack Wheeler; Lt. Andy Flint; B. Lyle Layman; Lou Godder; Susan King; Helen Scournt; members of Legion of Morality |
| Synopsis | The police begin an investigation into the destruction of Readworld, and Lt. Flint proposes that Jack Wheeler go undercover in the Legion of Morality, which is establishing a new office in the Quad Cities. |
| Genre | Adventure |
| Script | Max Collins |
| Pencils | Terry Beatty |
| Inks | John Nyberg |
| Colors | Michele Wolfman |
| Letters | Gaspar Saladino |
| Editing | Mike Gold (story) |
| Notes | Continued from Action Comics Weekly 602, continued in Action Comics Weekly 604. John Nyberg as the inker is inferred from previous issues, as none is listed for this story. |
| Characters | Blackhawk [Janos Prohaska]; Cynthia Hastings |
| Synopsis | Cynthia Hastings helps outfit Blackhawk for the job. |
| Genre | Adventure; War |
| Script | Mike Grell |
| Pencils | Rick Burchett |
| Inks | Pablo Marcos |
| Colors | Tom Ziuko |
| Letters | Steve Haynie |
| Editing | Mike Gold (story) |
| Notes | Continued from Action Comics Weekly 602, continued in Action Comics Weekly 604. Should be labeled as Part 3, not Chapter 3 to match other chapters. |