Checkmate #9 was published by DC Comics on December 1, 1988, as part of a series that began in 1988. Jenette Kahn and Paul Kupperberg write, and art comes from Al Vey, Art Thibert and John Statema. This 36-page issue features Harvey Bullock, Amanda Waller, Harry Stein, B.J. and Roger Dayton, among 6 characters cataloged on VerseDB.